For the money, it's excellent.
Relatively low noise, it does what the description says. With a good essential oil, it perfectly scents a space of about 40 square meters.

Very nice appearance and relatively quiet during operation. I haven't used all the settings yet, just on/off and lighting. I deduct one star because the one I received was defective from the beginning. As soon as you put water in the container, it leaked out. They replaced it for me and the second one I received was fine. I noticed that there was also a small difference in construction at the bottom between the two. For example, the defective one did not have a groove at the bottom for the power cord, unlike the second one I received. Also, the defective one had 2 small "holes" in the interior container. Unfortunately, it ended up being garbage right away and I don't have any photos to upload of the defective one. So it's also a bit of luck which batch made in China you will receive.

While as a product it is beautiful and has various functions etc., it makes a characteristic noise when it works... a quite annoying buzz! I would not buy it again and I do not recommend it.