This blender replaced a Sunbeam I had for 30 years.  The jar is oversized and supported by small blades placed in a small opening at the base of vessel, isolated from the mass inside. It takes forever to blend anything smooth.  After operating the motor for more than a few moments it begins to emit a strong burning smell.  The plastic drive assembly for the blades snapped off in the first week of use.  Cuisinart replaced one free.  The second one cost about twenty dollars.  I would not recommend this blender, there are better choices.