I’ve tried a lot of diffusers, and the biggest problem is usually that you can barely smell them after opening. But with this one, that wasn’t the case at all! I used it in my bathroom, and 10 out of 10 times I walked in, I could smell the fragrance clearly. It lasted me around 2–3 months, and the scent stayed there the whole time. Definitely worth the money, I'll be buying it again!