Might be ok for cats...
...but this device did not hold up for one day against my 9 year old, 20 lbs soaking wet Sheltie. I came home to discover she had knocked it around quite a bit so that the top part had come off, the food was eaten and the plastic cover over the control panel had been chewed. Perhaps the two stars should be assigned to my food crazed pet, but she's not exactly a junk yard dog.Programming the device was also very challenging and I'm almost always fine with that sort of thing. The instructions were poorly written and the steps counter-intuitive.The feeder did seem to work just fine when I did a trial run at dinner the night before leaving it alone with the dog while I was at work. As I said, this might work very well for cats. It simply isn't sturdy enough for many dogs, even of the smallish variety.