This is an excellent product. We had our other Nutribullet for over 20 years and although it was still working, the seal around the grinder part was a little loose. Rather than replacing the grinder piece we decided to get a new unit. The Pro900 holds more. Well worth the price.
My Nutribullet blender combo worked for a few months, but then would emit a burning smell while working. Small black particles of plastic?? was all over the blender and my countertop. Possibly in my smoothie as well. This blender has a very short shelf life. Definitely not worth the money. Would like to learn how to repair? Unfortunately, it will end up in the garbage.