I liked the former blades. The new ones seem duller, and the motor seems to labor more because of this. I understand that the former blades, a few, broke off when idiots put in too much ice, but I would never do that. I wish I still had the older designed blades.
I just bought my machine and have only used it a handful of times. It performed well the first time I used it, but ran hot, with an intense burning smell about 15 seconds in. I thought it might just be the newness, but the burning smell occurs each time. I am concerned and will need to return it unless this is normal for the first few uses.
I bought this blender to replace my older, plain-old NutriBullet that I planned to take and leave at our lakehouse. I thought the NutriBullet PRO would be more powerful with it's faster motor...but it doesn't blend as well as my old one. ??? It leaves tiny chunks of greens in my smoothies, when I never had that problem with the regular NutriBullet. I'm not sure if I just got a dud, or if this is an issue with all of them. Its super easy to use, though, which I love.
I have owned a nutribullet since 2012 . My Dad bought it for me after having Breast Cancer. I can honestly say that NutriBullet helped me get back to health after Chemo. My green smoothies each morning helped me regain my strength and energy.