We have used humidifiers at our house for several years, even taking them with us for hotel stays. New England winters get extremely dry, which causes sinus havoc. Our go-to humidifiers for several years have been Walgreen’s units, but as a gadget-hound, I was tempted to buy something a bit fancier and with more features. Having the ability to limit overnight mist output by either time or relative humidity is a boon. As another reviewer pointed out, the humidity sensor is on the base of the unit, so it is susceptible to being drowned by mist falling onto the table, but this can be compensated for. The built-in water heater does not do much, but that is true of almost all of these ultrasonic misters (I believe it’s some kind of safety law limitation). Like our existing misters, the bottom fill valve tends to leak when you first upturn it to reseat on the base, but this would only be resolved by a top-fill design. The other niggle is that the rotating mist vent will drop out onto the ground when you go to fill the tank, unless you remember to remove it first. Those little details aside, it’s an excellent humidifier and a very pretty one at that too.