Horrible. I love the Amazon suite of products and services but this app is just god awful. I never leave reviews but I had to here because this app just continues to get worse and worse. I have a brand new G21 ultra and always keep every app updated and Amazon music still doesn't work most times. Even downloaded music that is "supposed" to work offline doesn't play, like it's looking to connect, why? It's supposed to be on my phone already lol!