I have to wonder if the average cat or dog would be willing to stick their head though the do-hickey though.
Not sure how to train cats, but it would probably take some high-value treats to get most SMALL dogs to do it. And here's the thing, it's not going to feed big dogs. I don't think Vlad's head would fit in there even if he wanted it. I'm not even sure that it will feed dogs the size of Barkly.
Their previous versions are fully open, but they are motion-detection operated, and will open for anything that gets near it. I really think this is only going to help cats or maybe ferrets.