Did not work for me on one prescription, it said my RX number was invalid, but the Island Drug phone tree did accept the very same number. Tried a couple of times in case I mis-typed. Also the interface was a little clunky, it made my type my message every single time I tried sending my RX number. I'll try back in a few months...maybe they will work out the bugs...
So far, very convenient Refilled two RX's without refills from the app and both have been filled and renewed. It does what it needs to and it probably helps out the staff at the pharmacy so I'm glad it works out on both ends.
Updated for Marshmallow compatibility issues
Squashed a few bugs, thanks to all who found them!