I have a Nutri Bullet RX because I mke a lot of soups and smoothies when I thought it was'nt working anymore I purchased the NutriBullet 600W. Needless to say after I received the 600W my RX started back working so now I have two one is for backup. I love my Nutri Bullets.
Got this a month ago and haven't stopped using it since - we make kale smoothies every morning and it's so incredible how healthy they make you feel! Love having all that nutrition in one smoothie and the Bullet does a fabulous job of literally pulverizing all the ingredients!
The only thing I would recommend is to supply an extra gasket for the cup. We removed the bowl and opened it to add more water and when we closed the cup the gasket was out of the it's track and the blades shredded part of the gasket.