I went for the 10.99 exterior wash. Not a bad deal when you consider they hand dry as well. It was busy when I went so it took a bit but was impressed with the wash and will use them again. I had a lady that seemed like a manager since she was in a business suit help the regular person drying the cars, which was unexpected.
The only thing I didn't like was the individual who came by asking to fix a small chip in my windshield. I saw other reviews about it and decided against having him do it after he asked multiple times.