Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Junk.

Worked okay the first few days. However, this unit is a pain to keep clean, and if you slack off even a little, it creates a nasty smell and visible mold on the unit itself. We used it for two months before giving up. It got to the point where it would just create a big wet spot around the unit itself without actually increasing the humidity of the room noticeably (we have a hydrometer). Don't waste your money on this piece of junk!