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: Kamen Rider Hibiki
Broken Base - The second half of the series. The general consensus seems to be that those who liked the mold-breaking approach of the first half disliked the second, but those who prefered the franchise's more traditional style prefers the second half over the first.
Epileptic Trees - Shuki, the third female Kamen Rider recognised by canon after Femme and L'arc, and the third to be killed off after an all-too-brief stint.
The Scrappy - Kyosuke Kiriya, who was so despised that when his actor was cast in Kamen Rider Den-O, the Scrappydom passed to his new character before he had even made his début!
Tough Act to Follow - Todoroki chooses his own Oni name rather than taking the name of his mentor Zanki for fear of disgracing his mentor's reputation by association.
Applies even more heavily with Katsuo and Kiko, the only named classmates of Asumu (promptly forgotten post-Re Tool). Hitomi mentions in one episode that they always ask Katsuo and Kiko along on their outings to make it feel less like a date with Asumu.