"Do you have a suite of measurements that removes all shadow of a doubt that you are getting good sound, sound that you enjoy? "
In the spirit of audio as a hobby, you analyze the frequency response in your room. Being a gear head, kinda like having the dyno report of horsepower or the time slip from the quarter mile run.
Beyond that, IMO it's not about the music. Music is emotion. That can be stirred with a minimum level of performance with equipment from Best Buy in a bad room.
Base on some threads, some treat their system as if it's a musical instrument and they're the musician. Not my style.