I really love my chair!  I assembled it by myself, so it wasn't difficult.  One thing to note, when you are putting the adjustable assembly on the bottom of the seat, put all four screws in just a TINY bit and then tighten them down.  I put three in all the way and then the fourth one would not fit in the hole.  So I undid the other three and only tightened them a smidge, then there was enough wiggle room to get the fourth screw in.  Then I tightened them all down.
I was worried the chair back was too far forward, but once I used the adjuster to push it back a bit, it is perfect.  
Very comfortable because you can adjust the seat height, arm height, back tilt and seat tilt.  Super great chair for the price!