im waiting payment from coinverti more than month, i made a letter on support but they not answer to me , i have screens if you not believe me
Hi, your payment has been sent. Sorry for the delay, but for some reason your email was marked as spam. As an apology, we can offer you free credits for advertising. 
In my opinion, I would prefer to use an old network like coinverti than to use a new network. I've gotten so many bad experience with all this new ad network providers. Some don't even care about their image or reputation.
Coinverti still seems fair to me. 75% efficiency is still an excellent score to me.