The only issue with it is the control lights are a blue color. Not recommended for good sleep by natural health people.
After years of traditional humidifiers, this is our first ultrasonic humidifier and the difference is impressive. The pipes to add for the mist to be directed to various heights, the choice between cool and heated water, and the adjustable volume/speed of humidification are great features. The humidistat is accurate to within 3-4%. The machine is very quiet, which was an essential feature for using it overnight in the bedroom. The only thing close to a con with the machine is that the brightness of the icon for volume speed of humidification grows brighter with the higher rate/speed. Even on the lowest rate/speed it strikes us a bit bright, so we turn the machine toward the wall so the light doesn't shine toward the bed.