I upgraded to the 900 watts NurtriBullet Pro and I love it. The extra watts does make a big difference. I use it all the time. I have breast cancer and now my good nutrition matters more than ever. I even bought a second one as a back up because I never want to be without one.
Have had mine for four now and, when I am done mixing and try to release the unit, it will not shut off.. I have to unplug it to turn it off.. Otherwise, I love it!