I know a few people using Dusty's service, for most it covered the hosting bills and has much better returns than Google AdSense. He's putting a lot of energy into making it even better.

I suggest diversifying your ad real estate, at least initially, there's no reason you can't have Featured Users + Adsense + Deck, etc. Just don't go overboard with the # of ads on the screen, you'll drive people away.

You may also try using Google AdManager or OpenX and selling ads yourself. I prefer the former because Google handles the hosting.