Right my take on PopAds is as follows:
I started by submitting 2 websites which were approved within a few hours ( Both Proxy Sites)
I added the code and left them running over night and checked my account in the morning, the cents were adding to my account at about $0.01 per 10 popunders servered.
I then decided to contact support to ask if i could add my code to numerous URL's without having to get each site approved, I explained that i offered free proxy hosting and every site would be the same.
To my amazement I got a response from their support within about 2 hours saying it was fine !
So my overall experiance with them to date is a good one.
Its up to you to decide if the conversion ratio is enough for you, it does vary and 80% of my traffic is US/EU
Anyway there we go, i will report once again when I receive payment
Cheers
RR