I love it. I am not sure if you can avoid the $19.95 base Payment Network fee or not.
I did the CC payment before they offered this. It had a 19.95 fee plus a minimum in CC fees of $30.00
I just added the IPN on but not sure if it stands alone or if it is an add-on to the CC.
I like it a lot. Yes, it is only 50 cents a transaction
My consider dropping the CC's, particularly if I can also drop the $19.95 fee.