Just like other reviews have said,If you are tall, or wide, this chair is NOT for you. The chair itself is fine it's not uncomfortable but it's very low to the ground and definitely not wide enough for my needs (granted I'm large)Also, some of the screws were way too small and so it's not even together 100% correctly because some screws are missing due to not being able to use the small screws that didn't fit. Kind of sad considering the priceWas sent the wrong color but decided not to deal with schlepping the box to a UPS store to send it back.Assembly: good instructions, all pieces were provided, took me maybe 30 minutes. Would have been quicker if my cat wasn't "supervising".Comfort: the seat is firm but it's brand new, I expect it'll soften after a few weeks. Very sturdy chair as a whole. The back of the chair is very comfortable, nothing pokes or digs into my back.Tilt/adjust height/casters: doesn't seem to tilt much but that's ok. Definitely good on height adjustment, pump reacts easily using the handle. Casters run smoothly on the seam between two area rugs.OVERALL: 8.5/10 only because they sent a blue one when I ordered a white oneIts a very nice chair, it was a bit difficult to put together and afterwards i had alot of screws left over.Ordered 2 of these for my home office and my daughters homework desk she absolutely loves hers the chair is padded so its comfortable the back support is great and so is the arm rest. The height is adjustable which is great.PROBLEM is I ordered a white and a blue but got 2 blueI usually try to buy used so I can get a good price, but wasn't finding what I wanted. This will do for now. My ratings are based on the price-this is an inexpensive chair and it's quality matches it's price. It's not adjustable. If I was tall, this chair would not be comfortable for me. The grey in the photo is much lighter than the actual grey on the chair back. I would have just gotten black if I had known there wasn't much difference. It was very easy to put together. I did it in about 4 songs. My hands are numb today, so on a better health day for me, it would've taken less time.This chair is good for its price, it was just the biggest pain in the neck to put together, it took me and my husband over an hour to get one of the screws in... its pretty comfortable and sturdy!!The hardware isn't holding the armrest to the backrest, it keeps popping out. Overall the chair is ok for the money.Chair was fairly easy to assemble. Supports proper posture. Squeaks every move I make.