I want to start off by saying that I am not accustomed to the most comfortable of furniture I'm 19 years old and don't suffer from any sort of chronic back pain nor have bad posture. I find this chair extremely comfortable I have zero complaints about it but I had to remove a star because and this may be my fault but the head rest is just too short to support my head. To be clear I'm 5'9 maybe 5'10 on a good day. I do have a longer neck than most and people also point out that my torso is longer proportionate to my legs. But the headrest at sitting straight posture just kind of pushes down on my shoulders despite being adjusted all the way up and back. I've tried pushing and pulling it all different ways too so not sure how to go about it. I would just get rid of it but I really like it when I lay back since I can slide out a bit and rest my head on it. I am 150lbs not suffering any sort of weaknesses in the chair directions were pretty straightforward but I just confused myself when building it and all in all I want to be and am a huge fan of this chair definitely worth it on sale (thought a bit much when not in my opinion chairs just seem expensive in general though.)