I like that you can attach it to a surface or remove that part and have control over it too. It is really easy cleaning before and after. It does need to be a bit bigger than it is. I know I am not the biggest thing out there but this will make you think you are. It did seem to be a bit noisy once you add lube in the mix and lets face it, you need some lube. It does use 4 batteries, but I have only used it once. The batteries lasted so I don’t know how fast the batteries will wear out. It would help to be a rechargeable system.