Excellent, if purchased for the right purpose.
I almost didn't buy this unit because of the mixed reviews, but I took a chance and I'm glad I did. Bottom line, it works spectacularly well if used for an enclosed space where the air isn't being circulated/exchanged. I have it in a guest-cabin behind my house which sits vacant 90% of the time. It extracted about 1 cup of water in 24 hours of summer weather. Over a period of a week or so, I expect it will remove most humidity as long as the cabin stays sealed. There are 2 keys to this unit working effectively: (1) It works slowly, so expecting it to dehumidify your bathroom right after your shower is preposterous. (2) It's not going to work if the air you're trying to dehumidify is being circulated. In other words, if it's a room you're constantly going in and out of, or a room connected to your central A/C unit, forget it. You'll need a big, mechanical dehumidifier. But for spaces where the air isn't being circulated/exchanged, it will eventually extract most of the moisture and...
Useful Dehumidifier for Small Spaces
This little dehumidifier, about the size of a boot-sized shoe box on end, performs well. Although essentially all plastic, it is still sturdy. It is ideal for small spaces; I have a 6'x'10x8'h brick structure that is up against a hillside, so quite a bit of moisture comes through two walls even though they are moisture blocked. This unit extracts about 1/2 cup of water per day when the space is closed. This is just enough to satisfy my needs and prevent deterioration of contents. It wouldn't draw enough for a larger area. It would be very good for walk-in closets, even larger than my space, since they would generally have less moisture than I have. I don't believe there would be sufficient benefit for use in a living area since the unit would be overwhelmed by ventilation, having such a little volume capability. This would also be ideal for enclosed spaces in coastal areas.
UPDATE: THE UNIT QUIT WORKING AFTER ABOUT TWO YEARS. DID A GREAT JOB BUT I EXPECTED IT TO...
A cynical piece of junk
By way of background, I have been dealing with temp and humidity control devices for many years. Two reasons -- one, I am a lifelong asthma sufferer, and I have expensive wooden musical instruments that require constant care. I have owned many humidifiers, dehumidifiers, air cleaners and measuring devices (eg, hygrometers). I am not a technical expert on the science behind these things (although I do not think it is all that complicated). I am, however, a fairly experienced consumer of them.
I was perplexed at the dearth of real reviews of these Supentown dehumidifiers. I figured for the price I would find out for myself.
I put the thing in a room that is 15 by 10, in a basement, in Westchester County, NY. This is my home office. Due to landscape etc, we get a fair amount of humidity. No actual water in the basement, but it is often above 60% rh. In an adjacent basement room, separated by a 10 inch concrete wall, I have a large, high-end dehumidifier...
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