I have two Petmate feeders. One for home. Another for our vacation home.  They are wonderful. No longer do I need to wake up early to feed my beloved cat. And if I am not able to be at home in the late afternoon, I am confident he will be fed.  The device also has helped me to reduce his weight slightly to a more healthy weight by giving him small amounts during the day.  I supplement with a small amount of wet food just before bed time.  It is a slight challenge to learn at first how to program, but once figured out, it is a snap.  And the instructions are available online if you misplace the manual.  A tip:   If you leave the feeder for a period of time without use, be sure to clean thoroughly before leaving. We had a few small mealworms move in that we're attracted to the dry food.  But if you use the feeder regularly, this is not a problem.  I am VERY happy with this feeder and tried two others before finding this one.