Except for the little gurgle as the water enters the basin, this baby is SILENT! Perfect for even the lightest sleeper.
I've run it continuously since purchase, at varied settings; With medium setting it easily runs 24 hours but even at highest setting, it lasts overnight. Similarly, no condensation or moisture near or below unit no matter the setting.
The positioning of the tank handle makes filling a bit tricky since it can't sit on a flat surface, but I've found, by removing my drain strainer, it fits nicely in the sink with no concern of damage to the handle. Not an issue, really, unless person had an injured or weak arm/hand.
We have extremely hard water, so I noticed mineral build-up in just a couple days. With daily rinse and wipe, plus recommended vinegar soak weekly, not a problem.