My kids each have one of these now and say they're very comfortable.  Very easy to assemble and longer lasting than other chairs we've tried for them.  The only thing I was disappointed about is that I got the burgundy one for my son who loves red and despite the name, it shows as red on the computer so that's what we were expecting.  It's not red, it is truly burgundy so wasn't quite the right color for us but we still kept it.  Just be aware colors are a little off, at least for that one.