I bought this because the design concept sounded good in terms of convenience.  My electric churn ice cream maker works well, and makes good ice cream, but has some definite convenience shortcomings.  This Ninja addresses all those shortcomings.  I like the ability to have a couple different ice cream bases in the freezer, ready to go, without taking up a lot of room.  Cleanup is also much easier.  Overall, it delivers as advertised.  There ARE some limitations however.  As the instructions note, your freezer can't be too cold, or the ice cream will be powdery and... not good.  I've had to tune that a little bit to get the best outcome.  I've also been a little surprised that my old ice cream recipes do not really work as well in the CREAMi.  Use the recipes in the book, then make your own once you get the hang of it.  Overall, I love it, and have retired my old churn.  I have a couple other Ninja products, and the quality is always top notch, as it is with the CREAMi.