Much less expensive than the ones on Amazon and equally good looking. It is quiet except for occasional water trickling sounds but it's not loud or annoying. As soon as you turn it on, it emits a steady vapor stream and it scents your home wonderfully when you add essential oils. There is a color feature that you can turn on if you choose and it subtly changes color; I think it's pretty. There are about 8 different colors that it displays. When the water is depleted, it quietly shuts off. I think it emits vapor for about 4 hours when filled with water. I am pleasantly surprised that Walmart sells this. I plan to purchase additional ones for Christmas presents. Also, the box said that my purchase included a free one year subscription to Better Homes and Gardens magazine, but I don't know the details about that yet.