We have been very happy with this product. My 4 year old likes the lights but it also has zero lights when off and in a dark room (most have at least a light on the button which can be really eye catching in a dark room when trying to sleep). We have tried multiple humidifiers, this is the quietest one we have had. My daughter is a light sleeper! The company was also quick to offer to replace ours when it wasn’t working. Highly recommend.