Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very good humidifier

This is a very good product. The only downside to this item is that it keeps me awake if I try to run it on high. However, I am a light sleeper. It may not bother other people. If I run it on low, it is very quiet. I love being able to put Vicks Vapo steam in the medicine cup. This is very good if you have sinus trouble or if you have a cold. Overall, I have been very happy with this product.