This feeder has a built-in backup battery that's important feature to have in case of power outages. It was difficult to figure out how to take apart to clean feeder the first time. If only they'd referred me to the instruction video in the manual, would have saved a lot of time. Cust Svc. emailed it to me, and it's more detailed than the shorter video in the app. Should have searched YouTube first, but I didn't know about their channel/videos. Cust. Svc. is very helpful, but sometimes you have to wait. I love the Daily AI Highlights video, but I'm disappointed when I play them, they're choppy and don't play smoothly, even with solid wi-fi, and even if played consecutively (being already downloaded). Fingers crossed they can fix the choppiness in the AI videos. I got a few in the beginning that played smoothly, but most don't now for some reason. I had a food weighing issue that got solved by updating the firmware, so be sure to do that before using...very important. This feeder has bought me sleep and relaxation, because my cat is fed on the dot and he no longer has to wait for me, and possibly tripping me (and falling) while walking the hallway to the kitchen early mornings...lol. It's been a learning curve with the app and subscriptions and cleaning and all, but it's definitely worth it. If I can't make it home, I can always manually feed my baby an extra feeding.