This diffuser is a powerhouse! Of course, I've only owned one other and it was a cheapy little one that didn't hold a lot of water, which is why I bought this. To cut to the chase, I do recommend this product.I only gave 4 stars on 'ease of use' because it has 3 buttons on it, with writing that I can NOT see. It did come with instructions, but I need to fish them back out. Also one of the buttons is for the length of time the diffuser will stay on and you really can't see the writing to tell which mode it's in. I have this in our living room, which we spend evenings in, but even in the daytime I can't really see it. It's written in a faint metallic gold, which adds to the aesthetic of the beautiful diffuser, but maybe a larger font would have been in order, or back lighting the writing since the buttons have back lighting?Overall I do recommend it. It's very pretty, earthy (I got the wood looking one) and like I said, a powerhouse. Will definitely fill a large area with the scent of your choice.