These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Awesome Music: It's an opera, so there are many great numbers. "Vesti La Guibba" stands out in particular.
Complete Monster: Tonio; in some stagings of the opera, he hands Canio the knife at the climax, just to make sure everyone who's wronged him is destroyed.
First Installment Wins: This is the first opera produced by Leoncavello. It's also the only one that most people will actually witness a live performance of.
Values Dissonance: It's a little harder for a modern audience to sympathize with Canio and his need to avenge his honor against being cuckolded.
Especially since he did perform Wife Husbandry with a young starving girl