Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I'm returning this blender

The Waring Pro does not perform as adverised, either in the Waring ads or in the customer reviews online. The container on top does not "seat" itself firmly on the base; it does not lock into place for safety; and it does not pulverize a tray of ice cubes at all, much less in 3 seconds, as was one person's experience. Thinking I had gotten a defective machine, I called Waring only to be told that none of their blenders lock into place and one is supposed to hold the top down on the base while blending! The tray of ice cubes stuck in the blender without blending, and the personal chef I had in my kitchen at the time and who was watching my personal demonstration said, "No, no, that's not ok. Send it back!" And so I will.