The chair seat is very hard and uncomfortable.  Additionally, it's *NOT* designed to handle any kind of weight.  The manufacturer claims to support 400Lbs, but it's only lasted a couple months.  The base of the chair has broken and it leans 45 degrees to each side and creaks terribly.  I've lubed the moving parts of the chair and it still creaks.

In general, this is a terrible chair that's not worth the price