The first thing I noticed about this blender is the extended bottom of the jar. I was wondering what the reason could be and when I realized that it doesn't require me to actually lock the jar into the machine, the extended bottom does it for me. It was really easy to use and blended my items very well. For my one of my recipes, I needed something ground and didnt see the grind function on this. I instead used the highest setting and although I got the results I needed, it required me to press and hold the button. That was my only complaint.
Other than that , powerful machine, easy to use and works beautifully.