I bought nutribullet 900 series like 2 months ago I used every day some days as a juicer some days as smoothie machine , I really love this , is the best buy I made .
I have a nutri blast about 5 times a week. After a couple of months I started noticing that my silver hair is turning back to it's natural color. This will be an interesting turn of events since I am a senior.
After only using my NB900 2 or 3 times I didn't use it for a couple of months and had difficulty getting it to blend. I eventually was told by Customer Service that the 3 pushdown buttons on the motor become stuck from leakage and have to wash it in soap and water to loosen them so the blender will operate. I found this somewhat disconcerting that the design was like this.
I bought this a couple months ago and its the best blender I've had for making veggie and fruit smoothies! Be sure to follow the directions and not overfill it. One large cup will make more than enough smoothie for you to drink. It blends kale, celery, spinach, apples, beets, oranges, bananas, etc so well! It's also very easy to clean and portable. :)