I have purchased 3 NutriBullet Pros, one for each of my daughters and one for myself. There is only one problem. After having spent over twenty years involved with food processing equipment I was very sad to see that there is no easy way to remove the gasket to clean the blade assembly. Without being able to remove the gasket it is impossible to completely and reliably clean the assembly. No industrial food processing equipment is made that can not have gaskets removed for cleaning. One of the Nutribullet Pros that I bought seemed to have slot to allow lifting the gasket, but the others did not. Other than that, I use mine every day to make smoothies, scramble eggs, make sauces, etc. It cleans (with the exception of the gasket) easily enough, and I have never had a leak.
I purchased my Nutribullet last March, and I can honestly say that I've used it nearly every day since. Previously, I used my blender to attempt to make healthy smoothies. The blender didn't break the greens and fruits down well enough, and the transfer of the drink to a cup meant that I then had to wash two items. The Nutribullet is incredibly easy to use....clean up is a breeze since you extract in the same container that you drink from. The motor and blades break everything down into an easily drinkable smoothie - no chunks or clumps! I have raved about it for so long that my sister, father and friend all bought Nutribullets of their own!
After some experimenting with different ingredients, I have found my favorite every morning combination to be a handful of kale (filled the medium nutribullet cup halfway between bottom and Max line), 1 mini cucumber, 1/2 cup frozen pineapple, 1/2 cup frozen mango, 1tbs chia seeds, 2 tsp truvia and water up to the Max line. Beautiful green color and very tasty!