I have six of these racks, on two shelves of my pantry.  With just a quick look, I can develop my shopping list on these essentials, and when cooking it is so simple to reach in and get what I need.  Only change that what improve these racks would be if they were deep enough to hold more than 3 cans per level, with three across..Maybe 5 deep?  And secondly, one level could be taller to accomadate larger cans, such as Chunky Soup size.