Does not recommend this product
My first impression with the idea was, I love it. It's simple, new ad space to target with more natural looking ads. However, the product is still super early to be an ad network. At best, it can be a traffic exchange network.
I ran a $30/day ad campaign and here is my results: 17,902 Ad Impression, 35 Clicks, $0.86 CPC.
The idea is great but needs more in depth targeting.