Very good food bowl substitute
My large cat is very fond of food and a fast eater. She accepted the tray from the day of its arrival as her new foodbowl. I never had to 'train' or 'show' her, she figured out more or less immediately what to do. The tray requires a bit more care in terms of cleaning but it is of a robust built and dishwasher safe. It is quite cute watching my cat swiftly moving, shifting, dragging the different parts of the tray but I would like to have something more difficult for her. If you have a cat who doesn't consider screw caps as a challenge then you will possibly have a similar experience.