Initial impression is that it is comfortable and has good lumber support.  It has a nice feel and the seat support is good.

My only negative is that, even on the lowest adjustment, it requires some force to recline.  I suppose I can use this for a workout on my legs!!

A second person is useful (but not essential) to assemble the back and I would recommend checking the screw tightness after a few days as I found that some, which I though were tight, needed tightening.