It sometimes would stop playing songs and it needs to be reinstalled/data cleared to login again.

The cast feature doesn't link to the native app but uses the default Google Cast UI, then if I want to use my mobile phone as a "remote" like Spotify Connect what do I need to do? :/

It's got problems with liked songs, they're not updating and create problems with liking new songs (you click the heart button, it doesn't do anything, if you click it again it says the song was already added in the liked songs playlist, but it doesn't fill up).

Lyrics sometimes don't start after the microphone icon, you'd need to press back then click on the lyrics button again.

Really, please fix your Android TV app, it isn't good for everyday use.