I bought this kit because I wanted to be able to air-up my rig without having to run the motor, but also not worry about draining the battery to the point where I'm stranded. Everything about the unit is quality - its well made and well shipped. Everying is included and honestly installation was easy. I will note however the installation video glosses over the installation of the well nuts, and never having installed well nuts before, I did just as the video shows and didn't seat them. So I actually disassembled everything and used the printed installation instructions which show how to seat the well nuts. So that part sucked but I should have read the directions as well as referenced the video. My bad - Product good.