I enjoy this mod a lot for what it adds.
I've noticed a pattern however - the Legio, which is supposed to be the challenging end-game faction, is constantly wiped out by the other factions fairly early into the game. The Hegemony is particularly good at doing so, especially when Iron Shell is added. They simply invade Lucifron with large invasion fleets and are able to conquer it without any player involvement whatsoever, even after the "Legio Rising" event that gives them daemon ships.
In my most recent game, they were able to wipe out Legio in ~5 cycles, with essentially nothing more than the worlds they have started out with (plus the two extra from Iron Shell). I think a big problem here is that Legio basically goes to war with everyone, and they never want to ceasefire. So inevitably, they will end up at war with the entire Sector. It's a bit disappointing to have the endgame anti-player faction get destroyed so easily with no player involvement whatsoever. Daemon ships might be great in combat, but autoresolve invasions don't care about that, so they inevitably just get ganged up on.