I like the size of this humidifier. It fits nicely on the table beside my bed. It operates quietly, however, there is a faint gurgle sound now and then, but nothing that bothers me. I do find the buttons that turn the unit and the light on somewhat temperamental. They are super sensitive, and it is easy to go through several tries
 before finally arriving at the one you want. I have only been operating this unit for 3 days, so I would imagine that I will get accustomed to the buttons in no time. All in all, the mist output, and colour changing lights are very satisfactory.   BP