We bought this for our cat because we're going on vacation soon, and wanted to ensure she's got the food she needs at the times that suit her, without overfeeding her with one giant bowl of food.  Setup was a bit tricky (don't forget to buy batteries!), but once it was up and running - and I double checked my abilities to follow all of the setup instructions - it's been great!  No more face-bats at 5am for food, no more howling for dinner, no more worry about overfeeding our plump little house-beast.  

Be *sure* to follow all instructions, and definitely watch it for a couple of days to ensure it's working right, for certain.  For us, it's been a godsend, and I highly recommend this feeder.