"A large, connected tank for a small price, with the typical hidden costs of ultrasonic humidifiers."
The 6L tank is genuinely large, reducing refill frequency. However, the '60 Hour Runtime' spec applies only to the lowest output setting; expect closer to 20 hours if you're actually trying to humidify a large, dry room.
This is for the buyer prioritizing a low upfront price, a large water tank, and the convenience of app control. If you just need to dispense a lot of moisture into a room for plants or to combat winter dryness and are willing to handle the cleaning, the value is high.
Anyone with respiratory sensitivities should pause; the unit requires diligent cleaning and the use of distilled water to be truly healthy. Those who need precise, reliable humidity control for instruments or health reasons should invest in a unit with a higher-quality, proven sensor.