Love this chair!  It's lightweight and I love the black base (vs Chrome which is on almost all other task chairs).  The "gray" faux leather option is really more of a dark brown color which I like better.  It makes you sit fairly upright which is better for posture; it does not have any adjustments other than height.  I am 5' 1" and have short legs and fit perfectly; not sure a tall or large person would find it comfortable. It was pretty easy to assemble although I did have to get help aligning the screw holes when attaching the back piece.  I have used it for hours at a time and it remains comfy.  I love the sort of retro style which makes it look less like an office chair.