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.
Genius Bonus: Piero's potted history of the Medici family and the evolution of banking in Episode 4 is actually accurate.
Heartwarming Moments: In the final episode of the first season, Leo's master Verocchio (who has spent the entire series complaining about Mac hanging around his studio distracting the apprentices) takes his badly injured servant to Mac's home. When Mac has to go and help Leo, Verocchio says he'll make sure nothing happens to Mac's street kids.