I use this service and am happy with it.  It doesn’t require much to break even on $30 each month, usually 1 sale does it but during all of July I think I got 5 or 6 with it.  I’m getting more clicks than the John Nastor sites (LJ, bweeble, listbonus) and the conversions are higher too.  I use the mailer on a daily basis just like I do around 75 safelists.  My only expectations are I turn a profit to warrant the fee, and I build my list.