Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't buy unless you don't intend to use!

I purchased this item 30 days ago at a local store. After using it half a dozen times for smoothies (something a 550 watt motor should easily be able to handle) the motor stopped working. I exchanged it at the store feeling that I had just received a defective product. I used the new one 1 time...the motor died. Ridiculous. Needless to say, I returned it for a full refund. I won't be buying a black & decker blender ever again!