I bought this particular chair only because it is quite affordable. One of the worst purchases I have ever made. First of all, its assembly is very difficult as the pieces do not fit exactly together, resulting in me not being able to screw all the screws straight and some ended up crooked. Also, assembly is definitely not a job for one person, I had a very hard time. As for the chair's ergonomics, almost nonexistent. Also, from the very first day when I was raising and lowering it, it left a strange oil-grease at its base. My mistake was that I didn't return it right away. And finally, the icing on the cake is that after only three and a half months of use it broke and won't go up! The lever is broken and now it stays permanently down, and obviously it's very uncomfortable as it is way too low. Furthermore, now that it is broken, oil constantly drips from its base and I had to use duct tape to stop the dripping. I would not recommend it at all! Better spend a little more money and buy a better one. Terrible construction!
