I have used both. I now only use Ultra-cote/Oracover. Because it is much easier to work with. If your new to covering that might be a good reason to use it. Then after some experience try other brands. My experience has been just the opposite as earlier mentioned. I seem to get more wrinkles with the Mono-kote than Ultra- cote. But then the planes with mono-kote were all arfs. So that may have a lot to do with it. How it is applied makes a big difference with ANY COVERING.