Vitamix is one of the few blenders on the market is actually powerful enough to give you really good smoothies. It has a powerful motor that is good for breaking up the cell walls on your greens so that the nutrients are more bioavailable. Vitamix is a really old company with a fantastic reputation. I know people still using their 40-year old VM machine. It also comes with a tamper for blending thicker mixtures. I love the VM tamper for really thick blender concoctions—raw frostings, pates made with nuts, etc. The Vitamix is a favorite of many raw foodists.