This is a very nice essential oriole diffuser. I love the way it looks, and even more so with the lights on. I like to have the lights Run sequential, but you can choose just one color. The timing features are nice, but when I fill it I just let it run. The extra moisture in the air is really nice, and if you add some essential oil‘s it’s even better. It is good for about one room. Very nice diffuser and I do recommend it!