I loved Honkai Impact 3rd to the point of putting 200 hours into it.
The story was fun and the gameplay, while a bit repetitive, was overall very nice (except for the stealth segments, yuck).
The combat is fun even if the maps are not really great and the gacha is not as terrible as other gacha games.
I mainly burned out of it and never finished the story, very much like what happened with Genshin Impact.
Someday I'll actually finish it.
Maybe.