UOSC02BK

This chair might not be for everyone, but I love it! If you're looking for a chair that's going to cradle you and allow your hips and back to fall asleep in quiet, stiffened death, then this is not the chair for you. If you need a chair that is comfortable for your bottom, where on a non-carpeted surface you can easily maneuver the chair to sit or quickly stand, allow legs, hips, pelvis and torso to move fluidly, and that automatically puts you in better posture as there is literally nothing to slouch into, than this is the chair. The only thing I added to the set up is a stool in front of it as there is nothing on the chair for your feet to push your body up onto in certain positions you might find yourself in as you move from sitting to standing to sit-standing. For me, it's exactly what I needed to aid in getting my body back in open, mobile alignment and the perfect ergonomic adjunct to all the other functional movements I have committed myself to. I'm happy.

This is not a chair/stool to just sit on - it's designed to be a bit unstable and to be used leaning. If you want a stool to sit and relax on, this is not for you. You can sit on it if your legs are long enough, but that's really not what it's made for. Height should be ok for sitting with feet flat for most people taller than 5'6" (1.67m). Leaning height should be okay for most teens/adults. The base is wide and stable - works well on a desk treadmill to take a break from walking. It's not the most comfortable seat, but that's not what it's supposed to be. Sturdy and the handles make it easy to move around. Overall does exactly what I got it to do. Easy assembly and seems well enough made to hold up for at least several years.

So glad I got this. I think some reviews were incorrectly aligned when they mentioned this being too tall. It adjusts low enough for my 9 year old to use, and I am 5'6" switching between a few heights. Right amount of movement and stability! Though reducing from 5 to 4 stars because I ordered grey but got black . . .

A little pricy but very sturdy. I like the middle ground between sitting and standing some days and this is perfect.

Terribly uncomfortable chair. I feel like I am sliding off the front of the chair and it makes my back ache. The only comfortable position is leaning it back until the front of the base is off of the ground. Otherwise it puts pressure on the lower back. It appears to be a quality chair and the raising a lowering mechanism is smooth.

I’m 5’10” and even on the lowest setting my feet don’t touch the ground. I have to sit on the very edge of it with my hip elongated and add a foam roller under my feed so my legs don’t fall asleep. At the highest setting cant even get on it to sit. Would recommend for people 6’2” on up but not comfortable for anyone shorter than that.

I bought this for a very specific reason: I needed a chair to use with my treadmill standing desk that would evenly distribute the weight so as not to damage the tread or its step sensors. With the aid of an anti-fatigue mat for a little extra protection, it's served this purpose wonderfully. There's only three pieces to snap together, so assembly was quick and easy. When assembling, make sure you have the cushion facing the correct direction in relation to the base. It spins and swivels, but tries to snap back to a "neutral" position when at rest, a position that is determined by the assembly. I had to take it apart to correct the alignment after my first attempt. This chair is designed to be used in a leaning/half-standing position; if you plan to try using it like a bar stool with your feet dangling off, it's not going to work very well for that idea. Both for balance reasons, and I found the seat would depress more than it should if applying my full weight vertically, whereas if I kept my feet planted on the ground there have been no such issues.

I will update this review as time goes on. So far, this is a huge improvement over the generic office chair that I have been using. I am 6'2" tall @ 200lbs, my desk is 31" high and my old chairs seat was 22" high. That combination meant that my arms were elevated to use my keyboard and my knees were slightly below 90 degrees when sitting with "proper" posture. Because my arms were elevated, I had to use the arm supports on the chair to prevent my neck and shoulders from cramping, which they still did after a long time in the chair. In addition, my old chairs back support was too far to the rear and at a poor angle and promoted poor posture, with a tendency to lean back into the support instead of sitting vertically with shoulders back. This chair assembles in minutes and looks pretty well made despite its country of manufacture (a negative selling point, in my opinion). At its lowest height setting it is just about the right height for my desk/height combination. My arms and legs are both at slightly greater than 90 degrees when sitting in a comfortable position with proper posture. The chair almost forces you to use proper posture, as slouching is immediately noticeable and you have no back support to lean back against. This is one of the reasons this does not have 5 stars currently, but may be upgraded to 5 in the future; this chair can be exhausting to use all day! Some days I am primarily in our factory with very little sitting and some days I am almost entirely in the office. I currently cannot get through a 10 hour day using only this chair. After about 6 - 7 hours I have to go back to the old chair for the rest of the day because my back muscles are exhausted. I believe this is my own lack of conditioning and not the fault of this chair. If, in time, I am able to get through the day with just this chair (and no negative events otherwise) I will update the review to 5 stars. The only other notable thing to report, which is a minor nuisance, is that the swiveling seat tends to "learn" a new position if you twist in it for too long. I spend a lot of time collaborating with other workers in my office and if I swivel around to talk with them for a few minutes, the chair seat will remain pointed toward them instead of "snapping" back to the forward position. I haven't attempted to see if this is an assembly problem or an unfixable feature of the gas cylinder in the chair. It is easily fixed by simply swiveling back to the forward position and remaining there for a few minutes. It doesn't really affect the function of the chair in my opinion, so I haven't deducted anything for it. Overall I think this is a good option for anyone who feels cramped in a standard office chair, or those with taller desks. Just be prepared to switch back to the old chair if you get tired using this one! I am considering converting to a standing desk, so I will also report on any findings related to that. This chair extends to a height that is plenty tall enough for me to use it standing/leaning. Another plus for those of you who already have standing desks. EDIT: I have removed 3 stars. I still like this chair in concept, but it is just slightly too short for me at 6'2" tall. I have moved to a full standing desk from the one noted above and the height of this works for alternating between leaning and standing fairly well, but there is one big problem. The front edge of the cushion has a plastic support inside of it to help retain the cushions shape. This lip curves upward and ends up digging right into your thigh/buttock if you lean there for more than a few minutes. It is certainly a motivator to stand up again, but it is not healthy or ergonomic! Finally, while I was leaning against it today I heard a loud pop and nearly fell backward off of the chair. The screws holding the tilt device halves together pulled out of the plastic, leaving no resistance on the base of the unit. I took it apart and added longer screws to be able to use it for a bit longer, but this chair is destined for the dumpster. This was a good learning experience, however. The next chair will be ergonomic, certainly more expensive and more Made in America...

It's good for working and keeping full weight off of knees and feet. Very comfortable but a little difficult to move once seated.

Doesn't lean forward enough. 6'1 and finding it awkward to use at it's raised Standing desk height. Was looking for something that allowed more freedom of movement and leaning ability. The build quality is decent though.

Soft Swing swing: very cool Pfffff go down Ptsssssshhhhhh go up Swing swing! Ok, sit still ! Relax, yeah I love it

Me encantó que llegara solamente en tres piezas y su montaje fue de lo más sencillo, no me tardé ni dos minutos en tenerlo listo. La calidad de los componentes se siente y ve buena y el asiento Es amplio y acolchonado. Con un botón puede subir y bajar el pistón neumático y el balanceo y estabilidad del banco. Es excelente. Muy cómodo y ergonómico. Superó mis expectativas. Vale lo pagado por él totalmente.

It's a very uncomfortable chair - no matter how much I adjust the height of my desk! It tilts forward so you slide off. I would rather be in control of whether I tilt and to what degree.