Super convenient but you really have to wipe down your car after you drive through because it does a terrible job of blowing the water off. There are always tiny specks on my front windshield and hood.
I've tried the wash at least 6 times now. I think the time under the driers need to be a little longer and maybe the red heat lamp is what is causing the specks of water to dry on the car.
Also, the tire rims are never clean