I do not touch on the issue of cost, few people can calculate how the price is formed. I have a white car, passing by I decided to try it. Of the 3 available modes, I chose the "golden mean". I am very pleased with the result. Surprisingly, both the body and the wheels were washed perfectly.
A quick car wash, so to speak, you sit in the car, and the robot will do everything for you. 3 modes. It will wash in the most expensive bottom. If you evaluate the quality of washing, then it does not remove complex stains. It'll do in a hurry.