Very good features at a good price. Cats like it
It's easy to stop water from spilling out of the fountain: just don't fill it above the "Max." mark on the tank, as that brings the water level up to the cable outlet and causes it to overflow.
To clean and refill the fountain, you need to unplug the pump from the power supply so that the water flowing down to the lower tray drains into the transparent bucket. It's true that if you move it carelessly without unplugging it, it's easy for water to spill. The filter (with charcoal) is very large and effective. Very good.