I bought one of these about 10 years ago and wondered about the tub bouncing a bit as it churned but having no experience with them I thought it was just the way it worked.  Found out recently that it had a  "defective motor and tub". I considered replacing it with a Breville compressor model but because of cost decided on replacing it with another Cuisinart.  For our needs, this ice cream maker is a good choice but I strongly recommend buying a second tub. Poor selection of recipes provided in manual.