So far my perception is it is a decent chair. Time will tell on how well it holds up. It is functional and does a good job providing support while in proper sitting position so I guess in that respect it promotes good posture. The hard edges on the side of the seat are not comfortable if you like to sit "unproperly" for example with one leg under you or off to the side. Other chairs with a soft padded seat are probably better if you want a cushy seat but again that isn't really the best posture so I guess depends on what you are looking for. I will say I wasn't sure if I'd like the head rest but actually find it nice to have and very supportive. Other features like seat height arm rest height lumbar support all seem solid.
Not really designed for a tall person. The headrest hits me in the shoulders and the lumbar support is too low - - and that's with it fully raised. Would probably be good for someone under 6' tall.