I’ve had both legit and not.
Legit was in a hotel at a genuine spa and I have to say it was one of the best things I’ve ever done. Obviously not sensual, but the synchro massage working on my body was amazing.
Non legit at the Thai place on Gloucester Road Bristol about 18 months ago. 2 girls and I paid for body to body from both at the end. The HR was good, but I’ll say the overall experience of of the legit one was actually better.