It will be fine if you go to a good one. I wash mine one a week for 2 years and nothing has ever happened to it. I run one we wash all sorts of high end stuff 360 ferrari, bentely, and other stuff like that. I have been there for almost 7 year and only see a handfull of car that have been harmed and almost all of them are because the person driving the car didnt know what they were doing.