Are they too good to be true?  I was able to find one review of the agency by a phone search.

http://www.eros-philly.com/files/ny-david12-susana1.htm

I have seen a few on the list and never been disappointed - kind of renews your faith in humanity duzzin it?

Not sure what you meant. Have you actually seen one of them and who? I just found one more lady, Petina, adv under the same 516 phone number.  It's rare that an agency will send three ladies to the same town at one time.