I don't get what the big deal is. It's just an automated car wash that doesn't really do a good job, and you still have the whole interior to worry about. There are no sprays to clean the interior of your car unless you want cheap ones from a vending machine.
I wouldn't go here if it's been a while since your last wash. I paid more to get tires cleaned but there's still dirt and mud everywhere. It's passable if you just want a quick exterior rinse. The driers don't do a good job and you'll get water stains if you don't have towels to wipe up afterward.
I will say it rained the day after my wash, and I got a free wash without hassle.