For those wondering, we got the home video version with the more consistent animation when the series was being released in the US
Ho Yay: Christian's admiration towards Crane is tinted with this.
He even refers to Crane as "the Eve to my Adam" at one point.
Les Yay: Episode 8 may as well be called "The Les Yay Episode." In addition to Uzura the Schoolgirl Lesbian confessing her feelings to Hibari, there's also Hibari and Tsugumi pretending to be dating and Uzura grudgingly admitting that they make a cute couple. And then Suzume uses her gadgets to make the two faux-lovers embrace each other, prompting them to say things like "I can't control myself!" Finally Suzume unleashes "Phase 3: The Grand Finale Fanservice Climax" which compels Hibari and Tsugumi to kiss, although Uzura stops them at the very last second.
Older Than They Think: The show predates Puella Magi Madoka Magica in several of the elements which made it famous. The turn from lighthearted magical girl show to darker Mind Screw, the five main characters having color and personality themes matching Madoka's to a ridiculous degree, the entity which grants them their powers being more sinister than it looks... One can comfortably think that Madoka is this series's Spiritual Successor.