Was a bit skeptical about the universal contour wrap at first but was actually quite effective and firming/toning. It is a little expensive but does show results.
The venue is located close to South Kensington station, just a minutes walk. The place is decorated as a traditional massage parlour, the staff is attentive and polite. The treatment room was on the smaller side, the massage was great and I have really enjoyed it. The only reason I've rated my overall experience as 4 stars is their selling practices - I sort of expected to be offered more services, though I find it a bit much when you're on the table naked and being told oh your back needs massage more often (well true, that's why I'm here) and then by the end of the treatment you're also offered another 15min extra or a head massage and then you're trying to leave and offered something at reception again. While I get they need more revenue, I'm there to relax not feel pushed to get more services.
The salon is conveniently located just opposite the South Kensington tube station. The interior is a bit outdated and could be cleaner. My treatment itself was VERY GOOD and the beautician was friendly and very experienced. It took her much longer than I am used to but she did really a great job and paid attention to every detail. I will probably repeat.