The perfect record review should change your hearing. You should come away from it with your brain slightly re-wired, so that you never hear the piece of music in quite the same way again. The change happens because an interesting idea about the music was presented in such a rich and compelling way that it remains part of your consciousness long after the actual reading. Sometimes the idea presented is something that never occurred to you. Sometimes it’s an idea you knew emotionally but had never seen articulated in language. But you gain new insight in part because you are now hearing the music with someone else’s ears (those of the writer). You might also hear about the relative quality of the music, and how it’s situated in its cultural context. And sometimes ideas embedded in these observations can change your hearing. Sometimes the ideas are related to technical details. Sometimes they come from a very specific and personal place that is nonetheless recognizable to strangers and provides insight. Regardless, if you get all that and are entertained and maybe get a laugh or two out of it, that is perfection.
This is so wonderful.