I plan a trip to Las Vegas and there are some seeming legitimate Agencies with some nice women, even some I recognize from the internet (models).  Others are just really nice looking. I have talked with the Agencies on the phone and of course they give me the rundown on the donation, etc. say that if the provider/escort is not the one I want, then we go our seperate ways no money lost. But I am wondering if I do book some of the specific women in advance, is it likely to expect them to show up?
These are very professional websites and excellent graphics. I do not know if I could search TER and find these women they advertise since there is no advanced search feature.

is a legitimate agency.No,the ladies that show up are not the one in the ads that is why the lady on the phone told you go our seperate ways.Don't be fooled by professional sites and graphics do your research read the reviews .Many ladies  to choose from on here.

I will personally vouch for 100 Proof.  They are the ONLY agency that I know of in Vegas that ALWAYS uses 100% real photos.