Instruct: Classify a review into positive or negative sentiment.
Query: "Simply" wonderful.

I'm sorry the others haven't had a good experience with this model. Our experience has been great! I took this out of storage eight hours ago, inserted a clean filter and turned it on low. The waterline is down an inch already. (The humidifier is still on low.) We've been through several types and models of humidifiers. Don't let the simplicity of this one fool you: it works well. One note: It's probably safest to use it with distilled water. The same holds true for ultrasonic humidifiers. Otherwise minerals are dispersed in the air as well as humidity. Steam vaporizers don't warrant distilled water, but they present burn risks if used with children, the elderly or clumsy adults.The best feature of this humidifier: It is simple to clean, and cleaning is so critical to the healthy use of humidifiers. Water basin, filter and a fan. What else were you expecting from a humidifier?