Very comfortable chair. The heat takes a little bit to get warmed up but once it is warm, it feels nice on your lower back. Massage is more like a vibration. 
So that part was a little disappointing but over all is a good chair. Not to hard to put together. I am about 5.5 and the chair hits just right on my neck and feet. My husband  and boys are 6.1 and 6.5. They use a pillow for the back of their necks for support.