I just discovered that site and kind of got carried away and have purchased ads on about 30 sites. I will post a reply here in a few days and after the week over and let you know my results. I would be interested in hearing how it worked for others also.
At one point I was purchasing ads and getting clicks for about a penny each and the traffic was converting well enough that it paid for itself. However, I don't believe it is all that great of traffic.
Adengage is alright if you choose the right sites to advertise on. There are a good amount of sites that send useless traffic that is not targeted at all.
It's not all that bad. I've used it before. It's not bad at all. I've never had any problems or compliants with it.
So far the traffic has been pretty poor(atleast for me). I get A LOT of hits, but no sales. This is on free items that normally I convert 1/5 to 1/10 off my landing. So far i am 0/250. Not sure if its me or what.
It's all about the site you choose to put your ad whatever the network is , adengege , adbrite ... etc