This is one of the best new services that I've seen launched in awhile, for both the link buyers and blog publishers. Link buyers make out b/c they are undetectable links that the search engines won't penalize, and bloggers make out with the great rate & payout method. Plus, I like the non-disclosure agreement.
And you don't have to jump through hoops like other services make you do (payperpost, reviewme, blogvertise, etc).
I do have one question though... for link buyers, can you purchase any number of links, or do they only come in packages of 1, 10, 20, 100 etc? Or could I decide to purchase 27 (or some other odd number)?