I use this app for exactly one thing - downloading purchased music. Personally, I'd rather do that from the website, but since Amazon hasn't figured out functionality of that degree of complexity, I'm stuck with the app. And what an app it is. After purchasing music, I get to wait anywhere from 30 minutes to 12 hours before it becomes available to download. That's just spectacular. Everyone involved in building this useless mound of garbage should be beaten with a sock full of doorknobs.