LifeinAsia - 10:00 pm on May 15, 2013 (gmt 0)
We tried them for several weeks doing A/B testing against AdSense. Not even close! My account manager asked for several more weeks of testing, but we were losing money during the testing, so we pulled the plug.
The vast majority of the ads were not targeted. The remaining ones were vaguely targeted, but not enough to be competitive and encourage users to click.
I'm not going to lose money out of my pocket just so they can "prove themselves."