I called and sent a message a few days ago and the response suggested it was strictly legit. Pointed out there was CCTV in the reception and there was a male masseur working. I didn't take it any further.
They were a bit less cryptic in my conversation. I asked if they only had male therapists for males, they said no. They are all female therapists. And I asked if they offer anything else, they said to ask there.