I used another brand that starts with the word "nutri..." for the last four years. I wish I'd heard of this blender a long time ago. So much nicer, quieter. Not as powerful (300 watts vs 600 with the one I was using) but I think it does a better job. It is quieter, you can choose a speed whereas the other one only has one speed. Two different blades makes it more versatile. And I like how it attaches to the motor, then you choose the speed you want to use...the other brand starts as soon as you lock in the container.  I made my daily smoothie using the starfrit and the other brand...absolutely no difference in texture, taste and they both created the smoothie in the same amount of time. The starfrit turns off with a flick of the switch...the other brand spins to a stop after removing the container. Thank you starfrit..!