Does what it's suppose to do and that is it makes it easier to screw in screws, especially when you're screwing into wood. The magnetic benefit is simple but makes screwing so much easier, especially when you are prone to dropping your screws. When you are working in limited work space it's much easier to be able to put a screw onto the bit and then put the screw onto your work area instead of having to use two hands to hold the screw onto the bit until you have a bit into your work piece. Being able to simply pull out your bit out of this drive and replace it with another without having to remove the whole drive out of your drill constantly is another benefit. I'm constantly misplacing mine so I made sure I have extra on hand. Happy screwing!