Although I didn't assemble it because of arthritis in my hands, my friend put it together in less than 20 minutes. It is very comfortable and I fell asleep for over an hour.  The massage feature   So far so good.works great as the tension in my back was gone after 10 minutes and I really like the was it targets various areas.

Pros: Roomy, comfortable quiet.
Cons: Chair will not stay upright even when against a wall and must be within a few feet of an outlet to use the massage feature..