I had a heck of a time shopping for one...
a few years ago.
Most of what I read about them were that a) they're loud b) they use a lot of power, and c) they put out a lot of heat. I wanted the ability to set the control to the %humidity that I desired.
I bought and returned an LG. Too loud, too much heat. After reading a lot of reviews, I decided to take a risk and buy online a model called the Soleus (CFM40?). I got it and it worked great, and quietly... for about a week. After a total run-around from the online store, I finally got them to take it back and give me a replacement. However, they were not able to get the same model, so they offered something similar called the "New Air" something.
Yes, it is made in China, and initially appears cheap, but it is quiet enough to run in a living space with the TV on, and it doesn't put out excessive heat. The controls are not as I'd ideally want them, and the "automatic" setting only gets the RH down to about 55%. Any lower, you have to run it on "Continuous" mode. But it does have a timer which is handy, and you can connect it to a drain if you want.
Another handy feature is the "Clothes Dry" setting, which is "continuous" with a high fan speed. I often dry some clothes on racks, so this does speed things up. Overall, I'm happy with it, and frankly its lasted longer (2 or 3 yrs) than I expected it to.
I totally complained to Consumer Reports that their reviews and tests were completely unhelpful.
Anecdotally, I have read somewhere that Frigidaires are reasonably quiet. I will check them out next time, but make sure I buy it from someplace that I can easily return it if I have to.
I guess my complaint is that a lot of "traditional" dehumidifiers are basically air conditioners, and they're made for basements or places that aren't really lived in. Having had experience with 2 other products that appear to be a different, more modern design, they are definitely quieter, put out less heat, use less power, and are easier to live around. Also easier to handle and carry. I just hope the technology gets worked out so that it provides acceptable longevity, and that there are better (online) reviews over time so its easier to shop for one.