This hopper is good for those starting out and want an elecro hopper for cheap, but its loud and has no eyes so will quickly break thin-shelled paint if left on for any amount of time. The hopper is also somewhat difficult to take apart for maintenance, as the screws to get at the battery are inset quite far into the body that only really long and thin screwdrivers can get at them.
Conclusion:
If you are the average woodsballer and dont use high volumes of paint than I suggest getting just a grav-feed instead, however if you are a speedballer on a budget and will always be firing off your paint as fast as it can get into the gun I highly recommend this product