Download + offline listening is also something I look for in a music app. I just went through the free trials for deezer and qobuz. Deezer’s download was straight up stupid - I couldn’t find a way to force it to immediately download updates after modifying a playlist. With qobuz you could force the download immediately, but it makes you select “download only” before you start the music, or it defaults to streaming. Every single time. Sometimes the playlist got corrupted too if a song was removed. I’m almost ready to start buying music again…