I clean mine with a little boiling water and a toothbrush in the bath tub, since it's mounted on a board I can clamp to my kitchen table. It only takes a minute and cleans up fast. The boiling water makes it dry very quickly, even the board. I've had mine for 2 months now, and it was a great investment. I smoke a pack of cigs a day, so I've shredded a good amount of leaf so far. It needs another cleaning now, only the second time. I prefer manual as it's less parts to break.
I love this shredder and highly recommend it. Simple, easy to use, built like a tank, quality construction, for a decent price.