How Does Google AdSense For Feeds?

About 2 months, I've been running Google AdSense for feeds is a couple of blogs, including this one. Unfortunately, the results are not as attractive as you might expect.

Although we can not share the real numbers, such as CPM or CTR, I think I can say that they are much lower than AdSense for Content Page CTR / eCPM factors of 4-5.

AdSense for feeds

Yet, if you have a monthly income of RSS subscriptions can still be significant. My did not break $ 100 barrier, and I think it will take many months to get it.

So I think, for publishers, with a few hundred subscribers, which could be almost negligible almost useless. There are advertisers and less on the network as well.

Is anyone out there significant results AdSense for feeds?