This is actually legitimate, The Verge and Gizmodo and other major news tech websites have covered this app already, Gizmodo named it their app of the week. The ads are according to them are pleasant to look at, however to the fullest of it's ability you'll be making about 18 cents or so every 6 hours. It's worth noting this is USA only for now as it's still in beta. Here are what the ads look like:
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