As a short-waisted woman, I've always had troubled getting a normal office chair--including Miller's Aeron chair--to provide the height I needed.  This one does it!  I do have one complaint, however, and that is that the chair scratches and scuffs very easily.  Also, if you're a slight woman you will need a second person to help with assembly.  It's too difficult to line up and hold the chair back onto the bottom portion on your own.  Trying it by myself is how the chair became so scratched.