Hi there.
I haven't got the model they are selling at the minute, but I did buy the previous one.
It was a battery operated one & you had to put the whole thing in the freezer.
I tried it twice & it was useless! Once the ice-cream started to get harder, the paddles couldn't turn anymore & the pressure forced the lid off the machine. This happened both times even when i tried to weigh it down with jars full of water.
This one does seem a bit better though, but I'm not tempted at all. Already wasted about £15.00 with the last one, so I can't justify the cost of trying another.
Hope this helps?