I replace my old chair with this one and I feel it was a great upgrade. The headrest lumber support and adjustable hand rest are great for ergonomic posture. A great buy!
I love the adjustment it leaves about 1.5 inches you can push out or in the side arms and the back chair to make it bigger and smaller. I also remember reading the review that someone's wife was upset because she - in the Dexley - at 5'4 couldn't 'cross her legs'. I am 6'1 280lb male who is very flexible and can cross my legs myself. So i'm sorry your wife isn't nimble - tell her to do some stretches. I for one LOVE this chair and it is VERY comfortable for my size. Even my 330lb friend sits in it and likes it though no - he cannot cross his legs.