The empire reloader loads balls quicker then then the 12v revvy by about 1 ball per second more. It is activated by sound a beam. This means misfeeds dont happen. It uses a better designed paddle inside the gun too. It grabs the balls verses pushing them like the revvy. It is thicker then a revvy so it will last longer too.
The bad. Well most people think it will go off if someone near you is fireing, that is false. The only time it will go off when it is not supposed to is if someone shoots you hopper near the microphone. That might not always be a bad thing.
I like it better then a revvy. It is faster and it works with the balls a little better too. You push a button to turn it on instead of a switch. It also has automatic turn off so you dont waist you batteries. If you saved up 50$ to buy a revvy dont for the same price you can get a reloader. They just came out with the whole thing instead of the conversion kit and it is the same price.
Well, I own a reloader and someone shot their A-5 right next to me and my hopper went off. I have also been behind an inflatable bunker while someone was nailing it with an impulse and the hopper went off. Personally, It doesn't matter to me... but it does happen.