Instruct: Classify the given Amazon review into its appropriate rating category
Query: TINY! May be effective for very small spaces.

This TINY humidifier works well but don't be misled. The original humidifier that I was looking at had been discontinued and I was redirected to this one, which looks better similar to the first I had ordered last month. The price was slightly higher than the one I'd ordered, which we love. However, the original holds 1.5 happiness and runs for a couple days before needing refilled. This cost more and holds only 0.5 gallons. After running it at moderate rate for 6 hours it was completely dry. This does not hold up to our needs in the mountain desert of Colorado. The item is not returnable but fortunately Amazon customer service is spectacular and they issued a refund anyway so I could go to Walmart and purchase the large size.