I have 2 of these and just used them to bring cupcakes to a house 2 hours away. They all stayed level with no tip-overs or icing mess-ups. You can also leave them attached, which will keep the bottom layer fresh, while eating from the top. To get them out, just lift the interior tray with easy to use handles. Everyone thought it was very clever and wanted to know where to get one. I'm going to buy another because you can stack as many as you would like, as they just snap together. Now I can also bring cookies or cake at the same time.