The 22 year-old put it together after opening it on Xmas and loves it! I was looking for one rated for long periods of time sitting and that had a headrest high enough to use when/if you want to.
I've had the chair for just about 2 years and it's already falling apart causing me health issues. The mesh sags the seat base squeaks and has gotten loose where it tilts right and most importantly the piston doesn't keep the chair in the same position. I have strained a muscle in my shoulder because of this changing position as I use the chair for my work from home job. Recommend spending a little more and getting a better chair as I now have to do that anyway!
As much as I wanted to really like this chair I couldn't. I use one similar to this at work and thought it would be the same for home use. It was easy to assemble and looks great. However my butt started to hurt after only an hour. I returned it with no questions asked.