Chartboost, PlayHeaven, FAAD, AppGratis, AppTurbo, etc.

[R3v]

Hi!

I know, there are plenty of discussions about crosspromotion services like, as well as free app promotion services. I mean... I have really read them all, contacted theirs representants, etc.

But I cant still decide. Are they worth it? Have you experience with them? Please write ANY opinion, because I am currently totally lost.

Thanks!