I have a vitamix, but I use my bullet every morning for my shake. Its quick and easy and I can take it with me with the convenient handle. This is my 2nd one. I broke the 1st one, by so much use and probably too many ice cubes, a blade broke off finally. I use less ice now and its perfect.
You need to add nobs or grip material to outside of blade section and container section. The vacuum suction is so great after blending that it takes more strength than many people possess to unscrew the two pieces to consume the smoothie.
I used it for only half a job. Was using another Nutribullet that I purchased a couple years ago and used only about half dozen times when it froze u and snapped at the three anchor posts inside the housing. To finish the job I had to rush out and by another. The new Nutribullet is more powerful, so I hope it will last longer than the older one.