Massive anticipation, massive disappointment

This product worked beautifully--the first two times I used it. No ice cream out of the box, but can any model provide that? Once you freeze the canister bowl, it's actually fun to make ice cream. You assemble, flip the switch, pour in ingredients, and come back every five minutes or so to check progress. I made great strawberry sorbet, mango/lima sorbet (that's a Mexican lemon, not a legume), and chocolate ice cream. The machine broke on the chocolate ice cream. The replacement machine broke on the first batch of strawberry sorbet (so it was strawberry margarita instead). I checked the outlet, and the power thingie is compatible. But the motor shorted out on both machines almost immediately. It didn't get wet or anything, it just...stopped.