I love these oil refills for my dorm room. The smell is strong, but not overpowering, and it lasts long. I love to switch out the smells so that I don't get too used to one smell because then I stop really noticing the smell. When people come over, they almost always compliment the scent and ask what product I am using. I love that it is always there and that I don't have to worry about always spraying myself, like with aerosol cans.