I sat in a display chair at a Staples store so I knew what to expect. The chair is comfortable and the various adjustments height arm rest height lumbar support and tilt tension are all easy to make. I assembled the chair myself. The instructions are very good and the assembly is straightforward but some of the parts are quite heavy and an extra hand would have been useful.
After less than a year of use the base of the chair has cracked causing the center of the chair to plummet to the ground meaning you cannot roll with the wheels at all and the chair has a constant wobble with its new 6th leg being slightly longer than the others. Another problem I had almost immediately is there is virtually no back to the chair. The back of the chair is there and it is tall but you can not lean on it at all. Even in the locked position it reclines a good 20 degrees or so. It doesn't sound like much but I wish it had some form of support.
This is a really nice chair in general. But there is a section of plastic under the mesh of the seat cushion on each hip that protrudes out and hits my butt when I sit in it. I'm 220 so a little bigger than some. These two areas I think will be come a bit annoying. I may be able to carve them back a little or put some padding between the mesh and the plastic to absorb some pressure. But I would go to the store and sit in this chair before buying it (which of course I didn't).
The guy who left the featured worst review isn't lying one bit. I'm very disappointed with this purchase. With this chair if you want to lean back at all it is at a 140 degree angle. I've adjusted the tilt sensitivity to it's maximum and there is no difference whatsoever. I've been using this chair for three days now and I have back pain and can't find of comfortable way to sit in it. Just get a different chair people. I've never left a review of a product in my life until this day because I felt so compelled to share.