I have been a provider for a couple of years and I use various ways to market myself. I have never ripped anyone off, I am on time, I give good service, and I keep my photos up to date. My clients have told me that I look better in person and that my photos do not do me justice.
The advertisements that I use are Eros, backpage, other review boards besides eccie, and I even used craigslist until the erotic services was shut down.
Reviews can be a great marketing tool for a lady.
When a guy takes one for the team and is successful everybody beats their chest and applauds. When a guy takes one for the team and has a bad experience he not only trashes the lady but he trashes the website where he found her on. I seriously doubt that this same guy with the bad experience has tried every single lady who advertises on backpage and Eros. Yet he will trash that website and tell all his friends not to fool with it. Kind of reminds me of a broke man going into an expensive restaurant and complains about everything on the menu.
Taking one for the team is a game of Russian roulette. Getting ripped off is probably the least of your worries in this type of business. You could have gotten arrested; you could have been beaten up, or killed. There are some sick providers and sick hobbyists as well.