Depends on the kid wiping down your car.  \n\nThe last \"managers special\" at $29 bucks was, well, less than \"special.\"  They do a decent job; yet, I'm not sure if the stuff sprayed on the car with the flashing lights is anything more than soapy water.\n\nIt's NEVER as clean as you'd do it. . .but you're not having to do it.  \n\nAnd frankly, it seems like the worst scratches tend to show up afterwards.  Maybe they're easier to see on a clean car?  OTOH, maybe the high-speed, rotating thinga-ma-jiggers have a rock in there somewhere?  \n\nEither way, the staff is ALWAYS nice. . .if not a little overheated due to excessive sun exposure.