It's awesome to be able to watch your car get cleaned. Great entertainment for kids while you wait. My 4 year old thought it was the coolest thing!
Also, it's humbling to watch these people hand wash your car and other cars; one after the other in the extreme summer heat or with wet hands in the cold winter's air. Remember these people do this everyday to feed their families or as a stepping stone to bigger and better opportunities so please be sure to tip the hard workers in our community.
I noticed the vacuum wasn't impressive but just decently done for a $27 service. That's one of the few things I'm picky about in a car wash service and I don't think I'm the only one.