This ninja nutri blender is awesome! I love it so much! It is super easy to fill up the up and put it on the blender!  It makes zero mess! I use it for smoothies and it super fast absoluately no clean up because you take the cup with you! I was nervous putting frozen strawberries in there because they are hard, and my other blender has a hard time keeping up, but this worked great! they chopped them and blended them like they were nothing! I highly reccomend this product!