I used the Magic Mutt Dog Wash here and thought it was great. There is a $10 minimum for 15 minutes and under, after that it is metered. The room was clean, but a little dark and cold (it was 20 degrees outside). When I got in there I kept waiting for the light and heat to go on. There was an apron to use and the table/sink was just the right height. There aren't towels, so bring your own.
The directions were easy to follow and having the soap mixed in the water was really nice. There is a vacuum and blow dryer there too. It would have been nice if the blow dryer had warm air but maybe I didn't use it long enough.
It was well worth the money not to have to attempt it at home.