So nearly a good product,
This review is from: Cat Mate C50 Feeder
I have owned two of these, and would like to buy something similar now, just not this, for two main reasons:
the ice packs deform - so you can only put them in the freezer the night before you leave, otherwise they push up against the mechanism, stopping it working and you come home to the smell of rancid meat and a very hungry cat.
Also, they don't last long, admittedly I did drop the first one (although not from a great height, it's not terribly robust), but the second one has stopped working also, although it's not old.
My cat did start attacking the clock (he saw me setting it a few times and realized it had SOMETHING to do with getting the food), but wrapping a news paper around it and sticking that bit behind the cupboard worked.