It is quiet but does not increase humidity nearly enough ...
585874
It is quiet but does not increase humidity nearly enough but it will make all of the furniture and carpets around it wet. That said, I prefer using this one in the summer because it does not increase the room temperature.
1384302
Very quiet running.  Fine mist.  My room humidity went from 24 up to 31% overnight!  Keep a hand towel ready when you fill it as you turn the bowl over (and I pour only half a gallon distilled water into it at a time because I can't hold it with my arthritic fingers/hands) there is drops of moisture spills or run out:(
2411392
This is my second humidifier of this make.  It's a little noisy compared to my older one that's the reason for only 4 stars and not 5.  It does it's job other than that.
848590
Is really nice buntdoesn't put out as much mist as you would expect on full capacity. But it does its job
3712234
The water spong works OK but am a little disappointed at the humidifying capacity, seems a little lighter than advertised.
3224777
Very quiet fan. Don't expect a huge gust produced though.
1318552
I've been using this for two weeks and haven't noticed a change in humidity. It only has 3 settings, off, loud, and low.
1649059
It warms spaces nicely. As for the quiet part I'm not so sure. It seems to rattle a bit. Good price though and it works.
561480
Not as quiet as we had hoped but moves a lot of air.
3978674
It doesn't do a very good job of removing moisture from a small bathroom with no exhaust fan. It takes over a week for the little reservoir to fill up.
3787718
It is fairly quiet and easy to install.  Downside, it sprays water from condensation constantly.  Huge puddle outside the window.  They say turn it down to lessen it.  i didn't buy an air conditioner to not be cool.
1884844
I have a 4'x8' area and it is on all the time and doesn't reduce the humidity but a few percent.  Works ok as in a day it fills the cup about 1/4 but if you want to have a setpoint of 40% and your humidity is above 45% it won't do the job.  I ended up buying a $200 unit to fulfill my needs.
3181521
does push a lot of air and it is not loud.  I have it in my bedroom and its no more noise than an AC
4600194
To fill the unit you have to lift off the fan. The fan is a loud even on the lowest setting. The analog humidity gauge does not work.
3524372
Does not put out the amount of heat as the 11 yr old one I had and is much quieter I have very  expensive metal beer can collection from the 1930s through the 60s  that I cannot afford to get humidity spots on
2512044
I only had it for a few days. It is definitely not very quiet, although the sound is not an annoying sound.

When I let it run for a few hours, the air in the room feels fresher afterwards, so it's definitely helping improve air quality (although I don't have a quantitative way to evaluate it).
1852177
Pro: Yes, quiet, except for small warm air flow, hardly know it's operating.
Con: In a room with 70% relative humidity, hardly extracts any moisture, only filling half the tiny tank in 24 hours. Because it produces heat, it is consuming relatively a lot of electricity for the small dehumidification.
Maybe good for inside a small closet, as long as you remember to empty the tank (since it's out of sight).
Suggestions:
- Fitting on bottom of the tank that can receive a piece of small tubing for continuous gravity emptying allowing the device to be run continuously with no supervision or attention except for cleaning off mold,
- A digital humidity meter on front (like many other mini dehumidifiers) which will show the "success" (if any!) at reducing humidity.
Unless your humidity problem is tiny, spend a few more dollars and buy a model with a compressor. When this unit failed to make a dent in our issue, we bought a GE unit and it brought the situation quickly under control.