I just got my Rockano and I'm in love! I was looking for a humidifier + diffuser combo, and this is it! It's so chic and stylish and I've shown a lot of friends this product and they all think it's so cool! I have it in peach because I wanted it to look like a salt crystal. It's not too loud at all, and the mist function probably lasts anywhere between 5-6 hours without refill.