Kids absolutely LOVE it! I usually make it in the morning, as it's a fun way to start the day (plus I'm not a morning person and don't feel like cooking as soon as I wake up).
As an added bonus, helping me haul the 'heavy' blender from under the cabinet, feeling the cold bag of blueberries and the vibration of the blender, the noisy whirring, and sucking the smoothie with a straw make this treat a rich sensory activity.
Quite yummy as well. XD