Beware 2nd hand grinders. Sometimes you win, other times you lose. In the last month, I've binned a couple of Compak grinders. These were abused by cafe staff (yes, my blood is still boiling) as they leave them running ALL weekend with no beans in the hopper. Symptom - motor occasionally cuts out, don't have the time to spend trying to repair and frankly I don't care - it's suffered beyond all reasonable doubt, so the only place for it is the dumpster. I could sell them cheaply on eBay - they do work and may not fail in a home situation, but it's just not the right thing to do.