Offline Mode Not Great. Besides the limited selection of music with "only" having Prime, what with the 130 bucks a year, the app constantly pushes for getting Unlimited for another monthly fee. The app struggles when offline from service and downloading music often gets stuck in infinite cycle of trying to download. Must turn off phone data when on limited cell service for songs to play even when in selected offline mode. Freezes and acts buggy often. Prime benefits are nearing joke status.