We have used the machine about 6 times in the last month. It’s great for making a quick quart of ice cream. The one drawback is you can only make one quart, and then you have to wait hours for the bowl to refreeze in the freezer to do another. 
The machine is simple to use; just watch your ice cream the first couple of times in order not to over churn and make cold butter. 
I highly recommend a custard ice cream recipe (French) because those seem to not over churn as easily as regular ice cream (Philadelphia).