As someone mentioned before, indeed feel a bit strange when going through the sidewalk of the building and through the small gym. However when you get upstairs to the treatment area all looks decent. And then you get one of the strongest and most amazing massages ever (not that I do it often to have much to compare with, but this is the first place in London that I definitely feel like going back for more sessions.)
I have visited Thai London Therapy Marylebone before so I knew what to expect. You have to walk through a gym to get in, which is initially off putting but once upstairs it's really peaceful. The ladies that work there are all lovely and friendly and the massage is tailored to your needs. I will definitely go again and would recommend it.
I got the couples massage which included a thai massage, deep tissue and hot stone massage. It was definitely value for money. The staff were friendly and the place was clean and had a nice ambience. Its in a strange location and we kept hearing the phone ring which was a bit distracting but this is a small point. One of the ladies even let me rebook my slot so I could take advantage of a quidco offer and offered to save the slot for me. Overall it was a very nice experience!
The location was hard to find through maps on your smartphone but luckily the instructions on the confirmation was accurate. Having to go through the gym of a property is not conducive and seems kind of shady but once you are inside the service is great. It's exactly what we needed.