I am actually obsessed with these pans. The way they stack makes them really easy to store and the design lets you stack them without them touching/scratching. You do have to preheat the pans to make them non stick (which adds a little cook time) but once you do that they really are non stick. I’ve used them for a bunch of different types of dishes and each time it’s completely nonstick. You can also put the pans and the lids in the oven. Basically I’m obsessed!