Nothing but disappointment...1. You can't take stem with blades off - you have to clean it right on the mixer.2. Blades are flat - I can't imagine flat blade to be able to aerate something.2. Very unpowerful - it was fighting soft ice cream and blueberries for 10 min. and still I had pieces in my cocktail.3. After all my cocktail looked like milk with floating blueberries in it, not frothy whatsoever.My KitchenAid food processor did a much better job on these cocktails. I will probably get just a blender for this purpose.