This is a great chair. It was not hard to put together and its is very comfortable. I like how adjustable it is, the arm rest height and lower back suppordt can be moved. If I want to lean back I don't have to fight to keep it back. I recommended this chair to family who have office jobs because of how comfortable it is.
I saw previous reviews that spoke about the chair being reclined and I just thought that maybe they didn't do it correctly. But, sure enough, the chair is reclined, even on the most upright setting. You cannot sit up straight and have your back actually touch the backrest. No way you should be paying $400 for a chair you have to lay back in just to utilize the features. You can't even use the head rest unless you're really laying back. Everything else was great. It seems like the chair is high quality. Assembly took maybe 20 minutes, super straight forward. But, no way. I'm returning it.
Had to return, Chair 2 inches too tall for me 6'0'' tall to seat at office desk. If my desk was adjustable I may have kept it. The back leans back, very comfy if you are leaning back in it, the recline wouldn't lock up straight. Seat Cushion very comfy, Great structure but I think it's flawed.
Although comfortable, Changing the chair height is very difficult for a senior over 80 like me and I had to get someone else to do it. Although it says it will roll on a carpet with no special mat, at 164 lbs. I have found it very difficult. OTOH if it was on a hard surface it would be too easy to stand up washout it getting away from me.