I like this humidifier. The first 2 nights I added essential oil in the tray, it was awesome. It helped me relax and I felt I slept better, but now we do not smell the oil anymore and I am not sure why. I do not see anything in the troubleshooting part of the directions about this. I have ordered more pads so I am hoping this will help us to smell the scent again. The light is bright but we put a sock in front of the light to hide it. If I can get the essential oil scent to work again I would give it a higher rating.