Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Shopping to replace

I am a big Calphalon user, but this pan has no balance. You need a brick to keep it flat on burner/stove top. As a result you can forget about cooking anything that requires more than half the surface. The handle does stay relatively cool, but without a counter weight on the other side, it is useless. Currently I have to prop it up on one side to cook an omelet!