Works really well. It even works with something as large as gaming dice (see my test video. First time, I got a 19 for a hit and a 2 for damage, but it didn't record, lol). 4 meal programming is great to have rather than 2 or 3. USB power gives you a lot of versatility. I also like that there is a different sized scoop wheel to adjust to what you need. Instructions are not written by an American, but they are quite clear and understandable! I think it's a great size, not so big that food goes stale, not too small and needing frequent filling, and it has a fairly small footprint to save space.The recording option is cool. I would maybe get one for each pet if they have problems sharing, but place them in different areas and train them so they don't go to the wrong feeder.It has a push-button lock on the top. It's recessed so pets won't be able to hit it easily, and I think the feeder would tip over before the amount of pressure needed to open it, so your pet probably can't get it open even if they know what to do.The only option I'd add is an RFID tag reader. If I was designing the next model, I'd add that as a separate option that could be purchased and plugged in very simply by the user. This keeps cost down on the basic model and lowers production cost vs a separate premium model.