May 7 2015, I like this nutribullet 900 series look. I just started using it to test it out to make sure it works. I really must be honest and say that at this point when I made my green drink, I did not see anymore of a difference in power than my original nutribullet 600! But I will keep it since there is no defect and perhaps I will see more of a difference in doing some other drinks. Anyway, I really like nutribullet and I love how easy it is to clean and to prepare my drink. Getting the power booster superfood was the highlight for me. Actually my drink with the superfood in it was a little grainy but maybe the orange mix I put into the drink was the issue. I am not sure, but I did notice when I added more water to the rest of the mixture later, it was smoother. And yes, I ran the nutribullet for awhile so that was not the issue. Maybe I put too much food compared to the amount of water? I think I will try the same mixture in my nutribullet 600 and see if it comes out the same. Then I will know for sure. Anyway, it is a good product.