Car Wash

I read an article a few months ago about car wash directly at your doorstep. This service is provided to car owners who don't have time to bring their car to a car shop for car wash. I find this really helpful especially that I won't need to go somewhere and just enjoy my day while my car is being pampered.

Does any of you think this is a great idea? or does this have a disadvantage on our part? Your thoughts are highly appreciated.