Not good if your cats like sharing
I purchased this so my elderly, thin cat could have free access to food without my fat boy eating it all. Took her just 2 weeks to work it, unfortunately fat boy quickly worked it out too. My old girl tolerates fat cat so they are both able to get under the chip reader together! Even if she isn't up to sharing, fat cat is tall enough to reach over the side plate and steal biscuits! So not ideal if you have cats that are friendly with each other or tall enough to reach over the sides.