Very fast service. Even though they wash a ton of cars, there is usually never a big line for the vacuums (except on Saturdays when they are REALLY busy). Best time to go is early in the morning before the daily rush of cars.
Their wax & carpet shampoo is a great bargain. They also offer oil changes, though I get mine done elsewhere usually.
One thing to do... NEGOTIATE THE PRICE!!! If you get 2-3 services, you can haggle with the service advisor guy to get a discount of anywhere from 10% to 20%!!!