I have had my old Nutribullet for over 2 years. It doesn't leak and works great. I even travel with it on the airlines with no trouble in carry on luggage ... Great product !
For example: the rotor part that rotate with the motor and turns the extractor blades is made out of plastic without a reinforcing structure, after eight month of daily use it broke.
Easy to use, easy to clean up, no waste because contents literally pulverize. It's fun to create combinations. Drinks made with some protein satisfy hunger for hours.
I have been using the nutri bullet for months now. It works great! My only disappointment is that sometimes it is very hard to unscrew the blade from the cup. Overall though I am satisfied!