I've been coming here for over 20 years only because the location in convenient. The service has never been worse, very slow. Upon arriving, you are subjected to high pressure sales techniques to upgrade service. Then the cashier(I think the owner) never cracks a smile or says thank-you. The other owner (maybe the husband of the cashier) treats the employees like slaves. The employees that actually do the washing are hardworking people, so I always tip heavily.  Otherwise I will probably continue to come here because it is convenient and I haven't found other good car wash options in Tempe.