Sturdy and very comfortable for my 6' 200 lb frame. Good back support. Rolls and pivots easily. Easy to assemble with excellent instructions. Extra pair of hands comes in handy when attaching the back to the seat. Probably would not be comfortable for anyone under 5' 6" or over 6' 6" tall.
Replaced my office chair with this one. The vinyl coating on the old seat started to peel so I liked that this one had fabric on the areas that had peeled. The chair was delivered quickly Assembling the chair was fool proof and the only negative comment is that it isn't as adjustable as my old one. Not a big issue for me so I would still recommend it.
The Sorina chair is the best chair I have found for my desk. The problem is that I can't roll a chair under my desk because of the drawer and I don't have enough room behind my desk to walk past with a fixed arm chair. Because the arms fold up the chair easily rolls under the desk and out of the way. Art