The shape and depth of the can are what I was looking for. However the depth of the can is less than the area of the lid. As a consequence, it tends to back up to the wall and lean forward slightly. Also the bag of the can has an unnecessary pocket to store additional garbage bags. This pocket is accessible from instead the can. However, it creates a recess inside the can which causes the garbage to get stuck if your garbage bag is really full. Eliminate the hole in the can for storing garbage bags and have the top of the can be the same depth as the can itself and then you get the 5th star.