Review on Transform Your Space With Aromatherapy Essential Oil Diffuser: Ultrasonic, Colorful, Waterless And Automatic Off For Home Or Bedroom by Lena Marckese

I've been using it for a couple days now. The LED settings are very nice, you can choose between Bright or Dim for each color. I have it running upstairs and I can smell it through the whole house.It's very important to use real and pure essential oils for this - the kind that are made for diffusers. Heavier, greasier, "fragrance oil" can clog and ruin your diffuser. Please be aware that some essential oils are harmful to pets (eucalyptus is a big one) so be careful.The 3 hour timer seems to be a little bit finicky, sometimes it will turn off after only being on for 30 or so minutes, other times it will run for the full 3 hours. The "red" setting (programmed to run until the tank is empty) works just fine. I haven't ever used it without adding more water though, I don't want to risk damaging it.It is really difficult to get the outside cover off. I now use it without completely attaching the outside cover - just set it on without snapping it in place. This makes it much easier to remove and check the water level without trying to pry it off and make a mess. A minor design flaw, but I'm definitely willing to overlook it because this diffuser is cheaper, smaller, and still works just as well as the fancy, extra large diffusers you see in department stores.4 stars. It's a great price. This is my first oil diffuser and I'm really enjoying it.