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.
YMMV: A Midsummer Night's Dream
Author's Saving Throw: Played with in the epilogue, which coyly "apologizes" to anyone who didn't like the play. This was more or less formula for the period, and shows again in The Tempest, among other places.
Crowning Music of Awesome: Both Felix Mendelssohn and Carl Orff wrote epic soundtracks for the play. Mendelsson`s version taking a romantic tone, while Orff was concentrating on the bizarreness of the turns the plot takes.
Crowning Moment of Heartwarming: The way the 1999 film adaptation portrays the scene where Theseus overrules Egeus's requests and proclaims that Hermia can marry Lysander if she wants to. Through the entire movie, Hippolyta has been distant from Theseus, strongly implying that she's not as stoked to marry him as he is to marry her. It's also hinted that she feels sympathy to Hermia for being forced to marry someone she doesn't love. Before making the proclamation, Theseus takes Hippolyta aside and confers with her, before giving Hermia the right to choose her own husband. At this point, Hippolyta warms up to Theseus, seeing that he not only would let the lovers be together, but asked for her input on the matter.
Esoteric Happy Ending: The pairing of the human couples when you realize that the only reason Demetrius is with Helena is not because he has genuinely fallen in love with her, but because he has been affected by a Love Potion.
Some productions do hint that Demetrius really loved Helena the entire time, and the potion just reawakened those feelings. This is consistent with Lysander's statement in the first scene that Demetrius was wooing Helena before he inexplicably switched to Hermia.
The last we see of Titania and Oberon, they are going off for a happy ending, apparently having reconciled. This becomes much less sweet when one recalls that they only ended up this way after Oberon had his wife brainwashed into loving (and, implicitly, sleeping with) a human with a donkey's head and taking advantage of this condition to get her to give him a child she was looking after (something she was very against when in her right mind), only freeing her of the Love Potion because he pitied her and got what he wanted. And while the play does end with Titania asking how she ended up next to the donkey-headed Bottom like that, nothing suggests that Oberon doesn't get away with everything he did to her.
And of course, if you're familiar with classic mythology, you already know that Theseus and Hyppolyta's wedding won't end well.
Fridge Horror: Sure, the play is all lovely and funny and such but then you walk out of the theater and you suddenly realize that this whole conflict was about which crazy, sociopathic faerie monarch is going to get that mortal child they kidnapped.
To be fair, Titania was close friends with the boy's mother and essentially adopted him when her friend died in childbirth; Oberon's the one who's being all 'I want him now! '
It's a little unsettling to think that Demetrius goes the rest of his life never realizing that his "love" for Helena is just a fairy charm.
MST3K Mantra: Puck's final soliloquy: "If the story offended you, remind yourself it was nothing but a dream."
Values Dissonance: After the potion makes Lysander hate Hermia, he wards off her advances by saying she looks like an "Ethiope." African women were considered horribly ugly at the time in Europe.