I would straightaway give a 5 star. I have been to saloon umpteen number of times now and the service Has been excellent. Well trained staff with a warm smile and good service. Worth the money you spend as I think you will not get this level of service at this rate anywhere in London. Try it once and you will not go anywhere:)
The place is indeed hard to find and the entrance looks a bit sketchy. Inside is actually ok but I wouldn't go as far as saying its amazing inside - it's not pristine clean or anything. The waxing was fine, the therapist wore gloves and used disposable spatules. Overall its really good value for money - you get an efficient treatment. I would go back.