Been an audiophile and worked in many recording studios with sound engineering all my life. When it comes to a quality source and faithful sound reproduction many people wouldn't know what to listen for and lossy mp3's sound just fine to them - and that's ok. If you never listened to the Bermester sound system in your merc with a high quality source material you missed something. Considering the inherent limitations in providing quality sound in a car environment, Tesla's premium sound system is very good. For an included option in a standard Model Y its a very good system. It's just limited as is by Spotify's lossy streaming if that's all you have. Most car audio systems have post processing to try and enhance the sound for reduced cost and Tesla's no different with the immersive sound slider . Still, $23.99/m for Tidal is good value for some people- particularly if you have a real sound system at home and enjoy evenings listening to music...