Spotify Premium here. Love it. Tried Tidal. Sounds better but not great for discovering new artists. Playlists and community shared lists way better on spotify. Too expensive imo.

Bluetooth from ipad to Arcam rBlink in Stereo upstairs

Aux jack from Galaxy 10 to work truck (playing offline downloaded daily mixes and discover weekly)

Chromecast Audio to Garage powered monitors with Ipad

Bluos via NAD 777 from Ipad in theater

Use it everyday for hours.