That's rather eloquently romantic, but doesn't actually seem to mean anything beyond "it requires some ineffable quality of vague goodness that just FEELS right

That's rather eloquently romantic, but doesn't actually seem to mean anything beyond "it requires some ineffable quality of vague goodness that just FEELS right to me, I know it when I see it." What can be done besides "emotional feedback subjective gut check on how it makes me feel" when we propose to analyze the scenario?