Washed my mercedes benz here. Service is great, and I love the concept. You hand over your car, wait in the wifi-ready lounge doing some work, watching your car get all the washing love. And then someone comes by to tell you your car is ready and has you check over it.
I opted for the vinyl package. My car is definitely clean and they did a good job cleaning the vinyl and making it shiny. However, they clearly missed a few spots in the exterior and interior of my car that I had to tell them about (which they cleaned), but even after that there were a few more missed spots I saw but didn't bother complaining about.
Bottom line is that you get better value from going through the automatic or coin-operated car washes, and no one will wash your car like you do! They're just employees washing your car so don't expect them to pour love over your car and wash and massage it like it's their own. Nevertheless, you do come out with a nice clean car with little downtime.