We had a cheap and inefficient blender before...So glad the nutribullet is now replacing it. It blends and crushes in less that 30 seconds, not as loud as our cheap one( but still could use less decibels ), we used it to do all kinds of smoothies with frozen fruits and fresh greens, and it took care of it in a matter of second really. The key is to add liquid, without it, it will make the job a lot harder! Don't add hot liquid, it seems like it is not hermetic with hot liquid, and it leaks!! 
We will be making more smoothies now, kids love it (age 10 and up), create their own recipes and make it their breakfast.  Easy to wash if you rinse the blade right away, dishwasher safe. 
I hope this will last for a long time, as it helps us eating more fruits and veggies.