Great sound quality on some music, but everything else... Duplicate songs (literally my whole library), volume control when casting isn't consistently available, songs stutter and stop when casting, the interface isn't super intuitive, and the app keeps asking me to use Alexa. I don't want to use Alexa, stop asking. I'm looking to ditch Spotify and this app is sooo close to getting me to switch but the issues above are deal breakers. Do better on Android and you will get my business Amazon