Posted By: DC.
You establish a rapport and relationship with the Agent/Owner and can trust recommendations or feedback regarding new talent.

3.  Another level to resolve issues and/or problems that may have come up during the session (customer service),

4.  Built in backup plan if the provider flakes,

5.  Reduced risk of stalking from either side as the Agent/Owner is the only one with Info for either side,

6.  Special deals and prices for repeat clients, but applied for multiple talent rather than a single provider, and

7. More flexibility in scheduling and location.

Those are just the reasons I could come up with off of the top of my head.  However, you should only see the type of lady you're comfortable with.

BTW, 4 months would still be considered Newbie status IMHO.