I think another important point in all this is to avoid making generalizations. The fact that TCR is an advertisement platform means that the service level from one lady to the next can be quite different, even more so than with other classical elite escort organizations.
I am a regular user of the Aphrodite Escort Agency, which is widely considered the best in Europe. If I had to compare, I would say this: the average level of Aphrodite is certainly more 'reliable'. I never had a bad date with TCR (far from it), but some were head and shoulders above than others. In that sense, Aphrodite is safer. But the variety of profile in TCR is really impressive, and the best I have met there (Ciara, Nena, Luna) provided a service that was on par with the best I have had with Aphrodite.
But yes, you are taking a 'risk' when you meet someone. It is also part of the thrill in my opinion