This updated design is much better. I have the previous version of the ice cream maker attachment, and here is my analysis: improvement in
- bowl is more attractive with scalloped design therefore easier grip. 
- mixer attachment has better press fit. 
-less jumping of mixer head as ice cream thickens because of improved mixer attachment. 
Definitely a must to run the mixer as the liquid is added to prevent immediate freezing against the cold bowl. Depending on the recipe, additional chilling may be needed by transferring to a freezer container. Overall great for making your own ice cream!