It is a legit place, but there are Polish therapists there. The original poster didn't ask whether there is mileage.
Used to go there regularly for completely legit massage for a while, booking the same attractive girl regularly, pulling the drape off, or doing the other regular things to see whether she's open for more. Unfortunately nothing. Most was my hand "accidentally" brushing against her thigh or bra. Insurance did ask for the original receipt, which they promptly honoured.