SSwift was using it, and wasn't mad keen on the accuracy of the reporting, as I remember the thread. I also recall he mentioned that cost-per-action advertising was being pulled quite soon, if that might be a factor in your thinking. Full discussion here anyway:
http://www.blitzbasic.com/Community/posts.php?topic=79073
http://www.blitzbasic.com/Community/posts.php?topic=79073