This mold has come to replace my square mold mastrad silicone that has not aged well (and I bought more expensive than Amazon on this one). So I gradually banished all my kitchen silicone. Conclusion after several uses: it is perfect, cakes do not stick at all (with butter anyway, I did not dare try without), it is quality, it is a little heavy but it's not really embarrassing. The cakes cook evenly and with a beautiful gilding. What's more, for me it's perfect.