$10 can of Mothers caranuba wax and two pairs of old skid marked Hanes and I can do 90% as good.
That service is for rich twats without a sense of priorities. Only reason to detail a car that finely is if youre about to park it in a motor museum.
Indeed, if Im feeling flush and want to treat myself/my car to a good wash Ill run it through the £4.50 machine super duper wax on wax off polish cycle. It looks good for about a day, then in time honoured tradition I drive it out and it rains or I end up sat behind a lorry spraying it with all manner of crud and filth.