I've visited every so-called "hand car wash" and have instantly driven away after seeing how they're run. It's just a bunch of students being paid to scrub a car with a re-used broomstick and most likely recycled water. It's essentially a volume-based model where they try to get cars cleaned within a few minutes and then move on.
I'm having a hard enough time washing the car myself without leaving swirl marks but if I do it slowly and precisely then it's manageable. To date I haven't been able to find a single place like this. Where do the billionaires get their Lamborghinis washed?
When you buy a Lamborghini they will tell you the secret place. :+)