Very comfortable I use as a dining table chair as I have some physical issues . Gives good support to thighs and is adjustable to fit under most dining room tables.
The seat is a good size which makes it attractive to large people especially disabled like me. Small problem. On my old office chair the back is attached behind the seat which leaves the entire dimension of the seat to sit on. When you attach the back to this chair it sits on top of the seat which takes up at least 2". If you are relatively thin this is an adequate size seat. But if you are anywhere near large or extra large it is too uncomfortable. I felt like I was sitting on the edge of something instead of on top of something. I bought 2 other large black office chairs a few years ago and still have them. On these office chairs the back is attached behind the seat which leaves the entire dimension of the seat to sit on. Neither of them have this sensation and they are not special chairs. Just meant for large people like this one is supposed to be. I am selling this one to a friend as I cannot use it.
I have only been using it for a week but it is great for me. I can't speak to assembly because my lovely co-worker assembled it for me but he said it wasn't hard.
The chair has a really great cushion in the seat. Chair allows you to recline without feeling like you are going to tip over backwards. Four star rating only because the bolts did not line up correctly for the seat. Husband did not want to exchange so we made do the best we could with inserting the bolts.
This chair is very comfortable and it wasn't hard to put together. I ordered it online and it was delivered to my door the next day. Very pleased with my purchase.