Coming out in a couple of weeks.  What are best/most reliable agencies?  I define that as:
-pics are accurate
-services as defined on site or on TER are true
-prompt response
-easy to work with on confirmation
-attractive ladies

Phoenix Fantasy -- easy screening via P411

I would highly recommend phxgirls.  

Good to work with and Beautiful and Talented ladies

Both of the Agencies that have been previously recommended are good: accurate pictures, easy to work with, etc.

My experience is that the girls at Phoenix Fantasy are slightly more mature (maturity does not necessarily equate to age...), and a slightly better experience.  You pay a little premium for that, but to me it is worth it.  Depending upon your desired age range and your budget, but I would recommend Phoenix Fantasy over Phoenix Girls.  But you can't go wrong with either.

PM me if you want individual recommendations at Phoenix Fantasy.  We can discuss your preferences and I'll try to point you in the right direction.