Adrenalin Impulse with 12 V Revvy, Max-Flo, and Freak
If the batteries die it still functions as a non-electro hopper quite well.
It's noisy, the thing is always running and that get's annoying pretty fast.
It works, in fact if it wasn't for how annoy the constant whirring is I'd prefer it to a 12V revvy. It feeds just as fast as any gravity feed with agitation, but if the batteries die it still functions just as well as a shake-n-shoot and it only requires one 9V battery. With some motorized loaders the paddles get in the way if the batteries die.
Unfortunately the constant noise makes it far too annoying, and those different speed settings are pointless. But if it's reworked with an optical sensor it'd be just as good as any other gravity feed hopper.
Most people either don't know how to modify this thing to make it good, or don't have the motivation to do so. So I'm going to grade this product as it is unmodified. It's noisy and annoying. I used it for one day and got so annoyed that I left it off for most of that day.