I purchased this dehumidifier because my smart thermostat kept flashing warnings about high humidity in the house even though we have central AC. It takes a lot of water out of the air quickly. The tub is filled everyday. I didn't know how humid my indoor air was until adding this appliance. With less humidity, I think the AC is working a lot better. The house is definitely cooler. I like the wifi feature that lets me know that the tub is filled, but since I didn't enabled text alerts (too many of those already), it has limited efficacy. I am happy with this dehumidifier.