Ive only watched the first few episodes of the anime and they really bungled some stuff. My biggest complaint is probably the intro. It makes me cringe so hard because the vocals are just completely out of tune. Whoever approved that should find a different job.
But story wise im just annoyed by the harem filler stuff. The base plot would be entertaining enough, so it just feels like cheap filler to add all this gushing over the MC.
The absurd amounts of large time skips, not just at the start but also later on too, also makes it pretty jarring.