Instruct: Classify the given review into positive or negative sentiment.
Query: Great heater!

I love my heater and love all the features of it and the cute design is an added bonus. Unfortunately my daughter's room is the coldest room in the whole house, so we needed something small, but something that would even out the temperature. This was a great choice! The only negative is that after 2 months of use the orange grid is getting dark in the center from the heat, which makes it look dirty.