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.
Crazy Awesome: This show wouldn't be half as awesome if it wasn't completely batshit insane.
Tear Jerker: The Tragedy of Bashtarle in all it's sad glory. Especially when the aria 'Una furtiva lagrima' plays. The theme of the aria is 'the sorrow of people not understanding your true feelings', which fits perfectly.
The bittersweet ending.
Too Cool to Live: Taisou is powerful, wise and a total badass. He also has a personal vendetta with the apparent Big Bad, and can take him on one on one. Clearly, he had to die. He was also voiced by Norio Wakamoto, making him way, way too cool.
Toy Ship: Okay has there ever been a fan-fiction NOT doing this to Daisaku and Sunny the Magician?
What Could Have Been: This series has no real ending, and when they were finally able to do a remake, they opted for a full blown Continuity Reboot with aesthetics much closer to the first half of Neon Genesis Evangelion, rather than the fun and over-the-top style that the original OVA was known for. People had been hoping for something along the lines of Shin Mazinger, which maintained its original aesthetics, story, and tone, but boasted modern animation and a streamlined plot. It doesn't look like we'll ever get answers to the potential plot threads the OVA left us.