The office chair I had inherited was aggravating my sciatica and giving me back pain. This is a very comfortable chair that I can easily work in all day without creating problems for lower back. Easy to assemble. I had it done within 15-20 minutes using the allen wrench provided. The seat cushion is extremely comfortable and I found adjusting the chair easy. Was an absolutely fantastic value buy for the price.
I found the instructions very easy to follow. The chair is made of real metal so it is very solid. I have a back injury so sitting for long periods can be extremely difficult on certain furniture. This chair gives me the support I need for my back and is easy on by behind as well. I like the fact that I can lock the seat in an upright position. You just push in the lever and it locks it into place. My husband likes to lean so he just has to pull the lever out to have it his way. The height adjustment is very easy to maneuver.
The chair is very comfortable and offers good back support. I would recommend it. My husband assembled it without too many swear words. It is on a carpet so I can't comment on how it rolls.
I went in for a cheaper chair but it had a 1 year warranty and a 3 hr rating. This chair wasn't much more but it had a 5 year warranty and I believe an 8 hour rating. It is a comfortable chair. It doesn't have the padding my other chair had but it is much better for my back and more ergonomic. Even my 3 year old grand daughter was impressed. ;-) It was efficiently packaged so it fit easily in my car in the box. I would recommend this chair for anyone lloking for a quality chair which is comfortable affordable and good for your back.