Comfy and supportive, definitely feels like a chair you'd be happy to sit in all day.  The heat and massage functions are perhaps slightly gimmicky and a bit loud, but they are a nice feature and I feel the chair would be worth the money even without them.

Simple to put together, no need for additional tools.  The instructions aren't quite as clear as they might be, but everything is pretty intuitive anyway and difficult to get wrong.

Delivery was advertised as 2 days, but actually arrived next day.