Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Heater

I bought this heater hoping that I could keep my thermostat down and save on utilities. Well, it's certainly done that! My latest electric bill was about $100 less than the previous one, despite keeping this little heater going 24/7 on most days. I was worried that keeping it on too much would be problematic, but over a month of daily use has not caused any issues at all. It heats up any enclosed room easily, but can also keep you warm in any open area (as long as it is pointing at you). The only thing keeping me from giving this heater a perfect score is the handle. The handle area that you're supposed to grab it from, in order to carry it around, is overly slippery. It's very smooth and there is no indentation for your fingers to get a good grip on it, so don't try picking it up with anything but very dry hands, because you will drop it.