At first I was disappointed, I filled the pot to the max level and added a good amount of Diffusers For Essential Oil to it. Even a few hours later, there was still no distinct fragrance in the room.
I came back to the Amazon reviews page to see if anyone had had a similar experience, and found someone who said they had the same issue.
They were about to return it, but decided to try one more time, with a smaller amount of water and a very generous amount of essential oil. I tried it, and it worked!
The smell had dispersed throughout the house within the hour. Very little noise in the actual machine, just a small bubbling sound, and very easy to use and refill. I also like the time settings and auto shut-off! After using cheap diffusers for years, finally splurging on an expensive one was worth it! Hope it lasts