The chair is a nice addition to my spare bedroom that has a built in desk.  It doesn't get a lot of sit action so I can't say how comfortable it would be for long periods.  It was easy to put together - I'm 50, female and flabby - did ask my husband at the end to hold the chair while I guided it on the stem (last step).  I did swap different wheels that are smoother that I took off the chair I was replacing.  The person that reviewed it that said the wheels don't stay in was putting them in wrong - they snap in and stay put.  I got the pleather ivory and it looks very nice.