When I first started, I thought going with an agency would make my (and my partner at the time)'s life a lot easier if we worked with an agency. Wouldn't have to answer phone, screen, post ads, etc. etc.
So we contacted an agency and started working with them. (Don't remember the na,e of agency) . When we applied, we had to send pics.
The first day we are working, we had a lot of guys come to the door see us, and leave.
We looked up our ads, they were using stock photos. And not even with a blurred face. Each girl looked NOTHING like us. We contacted the agency. Well, our "booking agents" (we each had our own). The booking agents says we have to talk to the boss to change that. That they used fake pictures for our safety and that many of their other girls worked fine that way.
Regardless of whether or not I would've been able to make some of them stay, it still didn't feel right to me. We each got one call through them. We quit the same day we started, and continued to work independently.