I signed up for the unlimited exterior car wash plan for $10 per month this summer and it's been great so far. I can take my car off-road or take a road trip to the beach and when I get back I just run it through the wash... good as new! To get the interior done as well costs $5 extra plus tip which is well worth it once a month. So far they have been doing a very thorough job and I'm happy with their work. My only concern is that the machine car wash seems like it might be harsh on my paint. But as long as I keep a good wax on the car I think it should be ok.