I am 5'11" tall and over $200LB and I found the seat a little high even at the lowest setting.   Also would have liked the back to be a bit more vertical.   The wheels work well.   The armrests are ok but I would have liked them to be able to be adjusted a bit lower.  This chair will work for me but I would have returned it if it was not so hard to put back the way it came and pay return shipping.  You really do need to be over 6' tall for this chair to be truly comfortable.      Have had this chair about a year and it creaks on my kitchen floor all the time.....no idea how to stop the creaking of the metal bars that come out to the wheels?   if you are using on a hard floor i do not recommend this chair