As for their actual profession (if it's even real) I think it's a good thing. But they really need to do alot more 'investigating' and much less decoying. If the guy is already cheating you wouldn't need to pimp out your daughters out to them.
Alot of these 'stings' don't really prove much and the guys can easily get out of it. Like the biker that got picked up at a bar flat out told the girl 'Okay your drunk I'll give you a ride" and when she got there she invited him in and he said 'Okay but just for a drink' the girl still would have no idea if he would have done more than flirt with the girl so it doesn't really work. I guess if you're thinking about marrying someone and want to be sure what they would do if a girl hit on them this would be the thing to do. I wouldn't so much call it entrapment because it's a real life plausible idea that will most likely come up with a complete stranger at some point in time and you'd just like to know how they'd react. As for the big exploding 'I caught you almost maybe going to cheat on me' deal that's really unneeded theres no need for any confrontation and if you ask me it goes against everything private investigating stands for which should be PRIVATE. but I guess it makes for good television.
The mother has had wayyy too much work done, I'm surprised she can even move her face at this point and as for that older daughter I really wouldn't even bother using her, a guy would have to be really desperate and horny to even go near that one. I could only imagine the ghetto neighborhood she must have to drive to to find a place to let her strip in. The fact that they usually give out their real names to the boyfriends they're trying to pick up gets annoying, exspecially when your name is Xanadu.
The same plot line of oh we just had to get out and have some family time and oops my work phone rang gets old quick. Also why are the cheating guys letting them show them on television? Don't they need to sign a release form for that? Especially with the few that occurred in private homes and places. This show is like a mix between Dog the bounty hunter and cheaters, with both being better. Premise is good but needs much more work and 'reality'