We use this water bowl on the weekends when we're home and our dogs are playing outside. The unit is durable and sturdy. Assembly was easy and took just a few minutes. The unit is quiet and stable. It requires being plugged in to operate the waterfall feature so when the dogs decide they've had enough and head back inside, we simply unplug the unit and move it to a covered location. It holds enough water for our purposes.  A nice solution and it seems to remind the dogs to drink water while they're running around!