I have two ice cream freezers. One is a 5 quart White Mountain crank type that is over 75 years old and still works perfectly. It is important to keep the gears for the crank lubricated and be certain that all of the salt is washed off of the canister. I had one canister to develop a small hole because I accidentally left some salt on it and put it away. The other one is a one gallon electric one over forty years old and still works beautifully.
The crank type is the very best but it does need to be cranked outside. I put my electric freezer in the large sink in the laundry room and have never had any trouble; it must have a place to drain. Just be VERY CAREFUL with the electric plug. The key is the correct ratio of ice and salt It needs lots of salt. One just has to develop a knack for getting the right mix. If you are new to this follow the directions that came with the freezer, either type, to the letter until you feel confident about it.