So I have purchased 5 office chairs in the last 1.5 years. I have paid anywhere from $150 - $500, and they just didn't do it for me. This is BY FAR the best chair I have ever purchased. It was super easy to put together with everything label by letters and super clear A goes to B instructions. Even right down to the screws. Oh, and none of your own tools required. It comes with the only wrench needed. The chair is sturdy, comfortable, and the massage feature is great if you are suffering with lower back pain. I haven't tried the heat function yet to comment on that. If you are on the fence, just pull the trigger. You won't regret it. My hubs is happy that I found a chair I love so I stop buying them ;). It truly feels like I am not even working with this baby. Just throw on my tunes, the massage, kick my feet up and off to work I go! If I could give this chair 100 stars I would wish I could give it 110.