8o)

 
Actually, I know nothing about them, but you know the old saying:   If you have to ask, that answer is probably no.

5'9", 5'9", 5'8", 5'9", 5'8" ... Oh! found a 5'7" ... 5'11",  5'8", 5'9" ... Does this agency have a height requirement?
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The phone number search generates a total of 6 reviews. 5 of them are 8-9/9s all from the same reviewer who has not reviewed anyone else;  only 5 girls from this agency. Suspicious? The sixth reviewer has 3 recent reviews in different cities and he gives a a lower score.
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Personally, I'd be in no rush to go there until I see more reviews from credible reviewers. There are plenty of other choices in NYC.