I turned on the electronic renewal requests a few months ago. It is a mild hassle as sometimes scripts are not matched correctly, but overall it seems to save time.
I have a script today for which I do not want to do a refill. A window pops up that says you have a refill of 0. Do you want to change it to 1? The only options are Cancel, Yes to All, and Yes. Essentially it is refusing to allow me to send without an extra refill.