Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointed

I was disappointed in the performance of this radiator. I purchased it based on the reviews from others and expected it to warm up a 600sf room with no problem. It did not. Unless you were sitting/standing within 3-4 feet of the unit, you could not feel heat. I did better with a standard plug in heater! I'm sure this works dandy for smaller areas but not for me.