Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not worth it, even if it's cheap.

You know what they say: You buy cheap, you get cheap. or worse, you get a shoddy humidifier. I bought one of these last winter and it stopped producing steam after 2 months. Even when it did work, it was barely noticable in my 10'x11' bedroom...and that is NOT a big space to humidify. Plus, there's no timer or safety switch-off for when/if the water runs out. Luckily I only used mine at night and turned it off in the morning (it lasted just under 8 hours on a full tank), but I could see how it could cause potential problems if left unattended longer. This time I'll invest a few more bucks and get something that actually works, and works safely.