The arms that hold the feeder onto the cages are too weak and loose for a 5 star rating. If they were a bit stronger and tighter, easily 5 stars. The problem is that the animal can easily knock the feeder off the cage simply by apply a little bit of pressure to the feeding side of the pan. It's still a 4, and would recommend. But, you're going to want to bend or amend the arms so that it stays on the feeder better.
Rating:
[4 of 5 Stars!]