Many people have complained about the two-piece installation with a separate wire form. Maybe they didn't have one-piece containers, or maybe they didn't have a problem with it. Here are my two problems with solid containers: 1) The tabs break. We all try not to spend a lot of money on simple little perforated cardboard containers so that you end up with a cheap product and the tabs break the first time you take them off. That's why I came back here to buy more. 2) You have to rotate the trash can almost vertically to detach it from the perforated plate, which will spill everything inside. These trash cans solve both problems. I don't care if it takes 3 seconds longer to attach, it's more durable and functional. I will probably replace all my trash cans with this style.