It's not too bad to install, but I would like to see a better blower motor that is faster or moves more air. The rear seats don't get the warth the fronts do. With the full cab kit I purchased with the heater definitely helps keep it manageable in the cab. My family was driving around the other night when temps in high teens, wasn't terrible. The installation took about 4 hours with 2 of us working on it. The hardest part was connecting the air ducts to the adapters...