I wake up every day and make myself a breakfast smoothie with fresh and/or frozen fruits and vegetables. The Ninja professional plus blender with auto-iQ is the perfect machine for my needs. The blades are stacked and they are sharp! The blender locks into the base and it won't run until the lid is locked into place. I love this feature because it helps prevent accidents. I love that I can blend up a perfect smoothie with the touch of a button. It chops up and blends everything effortlessly. I love the pour spout that is built into the lid. I also love that it has a spot in the back to wrap the cord up while it isn't being used. This is the best blender I've ever had and I've gone through about 5 different blenders (various competitors) and none of them worked as well as my new Ninja.