Badly designed - spills water out the sides when moved

This humidifier works well enough, but don't plan on moving it without spilling water. It has slats on the sides to accommodate airflow that are badly placed just centimeters above the water level - any movement and water spills out the slats. Even worse if it is not on a level surface all four gallons will slowly leak out until it is empty. It's also a pain to fill - you must turn the reservoir upside down to fill and of course the top (which is convex) keeps if from sitting straight so you must hold it the whole time or it will tip over. Sure, it is quiet and the features and functionality are good, but not worth the hassles and wet floors caused by the bad design.