Of course this sight is a scam. Women who look like that do not revert to a trashy website to find sex. Also, most women who might live in your town, even if they did go to a sight like this, would not put there faces in the pictures along with their naked bodies. Use your head before you spend money on something like this.
If you are looking for a real casual encounter sight, look for one with no faces on the picture, or that most of the women are average looking or worse. There are real sights out there, but this is obviously not one of them.
Pros
Good pics even if you don't pay the money.
Cons
It is just a business with people paid and trained to get your money.
Review: About those "fake" messages, winks, and so on
So let me get this straight. You want to find a man who will cheat on his wife and help you cheat on your husband, but you want to make sure he will be faithful to you? This is why this sight is a headache, and not worth the money.