Almost perfect thing. The food is well sealed so the cats can't get to it. It fits enough in. One small downside: when I had two different types of cat kibble in it because I was switching from one to the other, I noticed that the kibble at the bottom stayed there longer than the ones at the top. It fills up from the middle. Anything lying at the bottom edge needs to be stirred manually from time to time when you refill the container.
All in all, a really good feeder, especially practical since I have two cats, so the two bowls are perfect. There’s nothing bad about it at all, except it would be cool if it had a camera or an app.