It comes already assembled, so unboxing and setting up were both a breeze.  The metal chair frame is solid and sturdy.  I'm 6'4" and 300 lbs.  There's plenty of space for me to sit comfortably and shift around whenever I need to.  I use an upright position to work at my desk and then use a more back-leaning position when I'm relaxing and watching movies, shows, or games.  I was tired and tilted it all the way back to nap in.  And it did just fine.  Overall, well worth what I paid.