It's been around a month since I've purchased this chair, and it's both extremely comfortable as well as ergonomic. My back used to have a lot of pain from sitting and playing a lot of games, my old chair had no support for my neck or my lower back. If you find yourself sitting for more than 2 hours at a time to play games I would recommend DX racer chairs in a heartbeat.

It was very easy to assemble and took me 20 minutes. You can do it on your own, but it's quicker and easier with two people (the backrest weighs quite a bit and the other individual parts aren't exactly light either).

Easy to assemble. The lumbar cushion and neck pillow are filled with foam. Sitting is very comfortable, even for a long time (10 hours +).