Might be new or might ask her clients not to post reviews.

It's a front for an agency called "Vegas Encounters" (among other names).  Expect the old bait and switch.

You're right to be concerned that there are no reviews of her.  Another cause for concern is that the phone number given on her first page is different than the one given on her Contact page.  A Google search of the phone number on her first page reveals that it shows up in several other ads for girls with different names and different photos.  And of course, for the web site for the agency Vegas Encounters.  Just check out the links on her Friends page, all have that same phone number.

Stick with reputable well reviewed independents.

Thank you very much for the invaluable feedback.