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.
Ho Yay — Francisco certainly loves teasing Curio. There's also a bit of it between Benvolio and Romeo, and arguably some more with Romeo and Petruccio. With the ladies, Emilia admits attraction to girl!"Odin".
Episode 17, saw Francisco and Curio sharing a candlelit dinner rife with homoeroticSub Text. Also, who can forget this little gem, said someplace between episodes 7 and 9:
Francisco: (to Curio) Unfortunately for you, I'm not interested in men.
William also teasingly flirts with Curio at least once
Also worth noting the Les Yay of the more...um, Squicky variety between Ophelia and Juliet in one of the last episodes. It's even lampshaded in the commentary track of the English dub:
Juliet and Hermione get a solid moment of Les Yay, in a bedroom no less, in episode 16.
Idiot Plot — The Capulet faction can be forgiven for keeping Juliet hidden and making her pose as a boy, since everyone knows the last remaining Capulet is female and they can't afford to leave Neo Verona in itself. Keeping Juliet Locked Out of the Loopin regards to her own heritage until her Dangerous Sixteenth Birthday, however, is downright idiotic since it means Juliet is completely unprepared to become the leaderess of the group and command them against the tyrannical Montague regime, and it takes a HEAVY mental/emotional toll on her. And they're shocked and even angry that the poor girl is completely shocked and unable to handle it at first? Please!
It Was His Sled — Romeo and Juliet die. If you weren't expecting that then you've never taken a high school English class.
Tear Jerker — The ending, of course. The duel in the penultimate episode. Also almost any scene of Romeo and Juliet happy together, because of the inevitable ending.
This troper, who had already studied the play in high school and is a normally unaffected by Tear Jerker moments, had to fight back tears at the ending because the last few episodes had been hinting at the fact that Romeo and Juliet may be able to Screw Destiny and end up living Happily Ever After. It didn't happen.