I had back surgery 2.5 years ago and have struggled in an office chair for long periods of time every since as I'll get stiff or generally feel uncomfortable.  I like that this chair has padded arm rests (sometimes when my back gets tired I use my arm rests to help hold me up) and the seat is very cushioned which is nice.  I put it together myself in about 30 minutes and I am not a handy person so it must be pretty easy to put together!