I put 5 stars as overall I am satisfied with the product, it makes what it proposes.
But it needs a lot of everyday care for me. It is written in the paper that you need to clean it!! But I didn't expect I will have to fully unbuild it, wash and dry every single day...
With the water that we have (island, hard, salty), the scale inside is accumulated after EACH USE and a lot! , stucks and after some time doesn't let the steam go out if you don't clean it daily (first time it happened after 4-5 days of use and I thought it was broken. Until I opened it.. And saw like maybe at least one soup spoon salts..)! So every time I use it at night, later in the morning, I have to open and clean it. But this is what we have to expect with such a water actually... So actually no complain to the product, just don't expect it will not happen if you use a tab water.
Maybe if you put a bottled or distilled it will be better.

Summary: I use it for a baby at night. At a big room (around 30m)
Because of the air-condition we gave to use in the hot weather , the humidity drops down up to 38-40%..

+ the device makes it 43-45% in the room (no more in such a room. But already better)
+ even though I have to clean it daily, it is very easy to use (build/unbuild, etc.), just needs some time.
+ it is NOT loud for me. only a bit when it starts
+ it is not cheap but compared to the other good ones I would say it is not expensive.

- it works around 6 hours so if you start it early (22), you need to refill it during the night if you want to have it full night.
hot steam - you should consider to put it to a safe area
- of you have a salty water like me - be ready to clean it every day fully (very often also with vinegar.

It looks good. I have used it three times. I just don't know if the humidifier is generally effective. My children have a cough. I think that as long as they don't cough so much, it might help somehow.

What we put in small and large spaces. In the bedroom, it is next to your head and does not bother you!!!
It's worth buying! It has easy filling, it lasts almost 7 hours. It is beautiful in appearance.