This is way more comfortable than I thought it would be.  I wish it had a little more lumbar support, but I find that if I scoot back I feel well supported.  I also sometimes use a small back pillow if I want to sit further on the edge.  The seat is very cushy, but firm; there must be thick padding.  The wooden arm rests don't feel too hard or uncomfortable at all.  I have lower back pain, but can sit in this chair for hours with no problems.  This is probably a weird observation, but it rolls so smoothly!  That is what surprised me the most about this chair.  I'm really glad I bought it.