How do you know when a stereo sounds good?

With this thread, the OP proves that there is indeed such a thing as a stupid question.

Personally, I don't care at all about measurements - I'm the one doing the listening, not a device of some kind. I guess what I listen for when comparing systems to see which I prefer, I probably listen for the bass first, to see if it sounds tight and controlled but still with a physical presence to it.... 

Do you have a suite of measurements that removes all shadow of a doubt that you are getting good sound, sound that you enjoy?

Define "measurements".

Juries often have been known to ask the judge what is meant by "beyond reasonable doubt". Given the answer to my previous question, then what is "removes all shadow of doubt"?

Is there an assumption that I enjoy only a good sound?  Which also may require asking what is a good sound, and this is a personal preference.  I know different reviewers are sometimes quite truthful about the sound they prefer, given a choice.

Or maybe @roxy54 is correct and we ought to perhaps call it out for what it is.

To me it's more of a question of "what am I missing?"  To some a single Bluetooth speaker is all that's required to be pleasing, to others every piece of the system must be analyzed tweaked, treated, compared and modified and it still may never be pleasing enough.  If being an audiophile is your hobby it requires a lot of exposure to a lot of different systems components and experimenting until you are satisfied that the choices you made are providing you with the "experience" you require. It might may be pleasing but still lacking or it may never be pleasing as you continue to obsess for that final 10%.

To be "pleasing" the system is just a vehicle that provides the recorded music you find pleasing.  Your priorities determine if sounds good or not.

Again to me Measurements Smeasurments.  Good sound can't be measured on an enjoyment scale as it's way to personal.  YMMV