I had a flawless experience with Musicolet... to a point. After a while, certain particular audio files would come up with runtimes of 0:00. They still played fine, but scrolling was impossible. Annoying, but tolerable. After the update, those files simply don't exist, as far as Musicolet is concerned. Unfortunately, that's something I can't just ignore, especially when it's upwards of 30-40 songs doing this, so I'll be switching apps. If that doesn't happen to you, the app is great.