Having tried many automatic feeders, I have to say that it is awesome! First of all, it is quiet and has a regular electronic clock, meaning it does not just count down, so there is no deviation in programming time, which means that if there are multiple cats, it is possible for all feeders to open at the same time! It is easy to program, just need a little practice! Also, it retains memory even if it has been unplugged for hours! It is very important that it plugs in with a USB adapter because batteries - which it also takes - are expensive and not as reliable! It can be washed with water or dish soap! The only slight negative is that it makes a little abrupt noise when opening the slot, so it would be good to be with your cat when it uses it for the first time so it doesn't get scared! VALUE FOR MONEY!

Positives:
It works with electricity, with a simple mobile charger with a micro USB cable
It does its job, cannot be easily tampered with by the pet
It is durable over time

Negatives:
6 slots but essentially 5 meals, because 1 slot is always open, it does not have a lid like others
The instructions are very simple
The main problem is that it does not say ANYWHERE that you should only program the meals of a 24-hour period and not all 5. This is done by programming 1 or 2 or 3 daily meals and holding down the gear to save them. After the programmed meals, the next 24 hours start from the beginning

Excellent product. High quality, very stylish and functional. The cat cannot break it, no matter how hard it tries! It saves time and effort!