Hmm, it doesn't seem to be working very well for me and it buys items and fails to feed the Kads. I've been running it on and off since 1pm (it's now 9pm) and I had it on for 4 hours yesterday and I've only fed 2 Kads in total...
My experience?
I on for 12 hours only fed 2. And if you're running on and off, its better if you don't run it at all. Just wasting the effort