"I agree with the other reviewer about the watering feature. If your dog dribbles any food into her water, the watering side needs to be washed out periodically, which requires you to remove the food bowl and then lift the whole top section out. Using the 2 liter bottle sounds cool, but the water level has to stay high in order for it to work. I have never filled it that high because the dog would slop the water onto the floor. I gave up on the watering feature and now just use the 2nd metal bowl.
I ordered it because I liked the ability to store the food in the feeder itself. I didn't quite realize you had to lift the bowl section out to get the food, which is a little bit of a hassle. Still, it's much better than the big bag of food taking up room elsewhere in the kitchen.
Finally, it's worth pointing out that because the top section rests on the kibble, the height changes depending on how much food is being stored. It doesn't matter for my dog, but if you are considering this because your dog has shoulder problems, etc., then this fact might make a difference in your purchase."