Yes I have met Kay from Stonebridge Park. It is £40 for the hour massage plus £10 for HE, so yes £50 for the massage plus HE. The set up is quite simple i.e. a massage table in what seems to be her bedsit. I met her back in February. She told me that she was 37 - if she's older then its probably only a few years out (so maybe early 40's). The massage was really good - nice and firm. The HE was also really good - she's obviously done it before! She also did not seem to be watching the clock. She will give you her address when you are at the end of her road. Its not a long road so you are only 5 mins away irrespective of what end you are.
My only concern was that she did not stop talking! If you can cope with that then go for it. My understanding (from Kay) is that she does not do anything else. No B2B, no oral, no FS.