The location is initially a bit tricky to find, but once you get there it is a very nice place. The staff are always friendly, and very professional. The treatment rooms are spacious, clean, and nicely decorated. I have been to other places and they are usually a little cramped - definitely not a problem at Luxury Wax Bar.
The prices are on par with the market, so no issues there. Lastly, the process is less painful than anywhere else I have been; I don't know if it's the technique, or the quality of wax, but it's consistently more comfortable. That's why I travel across London to go here.