>>715695161
It's fine to start now, especially since you could gun for the walpurgisnight banner units.
Although you might have to grind, playing through the story doesn't require the resource advantage old players have.
Story is solid in my opinion but it's harder to compare it in its entirety to complete stories when this is an ongoing story, we don't know where it will end up. I like the individual cantos for the characters though.
Soft sequel since the Library is stuck in the Outskirts, it has a few cameo appearances from LoR guests in terms of main story but nothing central.