I just used it to download a clip from Youtube, it works like a charm! (Tested on OS X 10.8.2. Google Chrome 24.0.1312.57)<p>However, the process could be made clearer on the website and in the app. It would also be nice to have a (contextual) menu item or button in the app to show a file in the Finder. Now I had to search for the media folder.<p>Also, the installer placed the folders 'MoviePileMovies' and 'moviepile_assets' in the base level of the user directory. I think it'd be more logical for 'MoviePileMovies' to go in the 'userdir/Movies' directory. And can't the 'moviepile_assets' folder be placed in the app package, or in the 'userdir/Library/Application_Support' folder?<p>EDIT: I took a look at the Kickstarter page, where I found this:<p><i>"MoviePile is a Java application, which means that it's cross-platform. You can use it on Macs or Windows or Linux. The sky's the limit! That said, a significant amount of effort will be put into making it seem like a native app. Do you use a Mac? It will feel like a Mac app!"</i><p>Sorry, but right now it looks and behaves nothing like a Cocoa app. It doesn't utilize the Mac menu bar. Buttons and menu aren't where a user expects them to be and they're styled very differently – the dark flat UI isn't conform the Apple HIG. For me, that's not a big deal, I'll continue using the Finder and VLC to manage and view the files. However, since you're aiming at average consumers, I feel I have to tell you that you're going to run into problems if you keep this a Java app: many OS X users don't have a Java runtime environment installed.