I'm REALLY pleased with this purchase! I've had quite a few humidifiers over the years and this is by far my favorite. It works well in medium- larger rooms (hard to get for this price) and it's very quiet. SUPER easy to fill without spills and stuff, and I have hard water that leaves deposits and clogs things up, and so far this is performing fantastically! Even my cat approves of it's level of noise, since he doesn't try to attack this one.
Overall, though? My favorite feature is just how easy it is to fill! I definitely suggest this one!