You are unable to sit upright with your back touching the chair. It leans too far back in the upright locked position. Other than that it's a good chair. I was able to fix it by making an angled wedge to mount the chair back on but before that I was going to return it.
The tilt is set too far back. Tilt knob is on so tight that it can’t be turned. You need to inform your people to leave the tilt knob so it can be adjusted by the buyer. I now have to pay someone t have the proper tools to loosen the so I can adjust the tilt to my liking.
It is a nice chair. If it had a little more adjustment to the back it would be perfect. The lumbar support is nice. But much of my work is leaning forward if the whole back could adjust forward I would be ecstatic.
This chair is comfortable and lets me re4lax as I work. I can really stay working in it all day. Everything is adjustable so you an tune it to yourself. 5 stars.
My daughter who is 6'1" tried all the task chairs that the Staples store had in stock and this one was the best fit. She found the instructions for assembly to be exceptionally good.