Mod's great. But the Westerlands still remains really weak, they lose pretty quickly. Dragonstone's AI initiative isn't that coordinated. And also I don't know if a Targ invades in this version, but I'm at about day 100+ and most of the fighting between the North, Riverlands, and Westerlands is done by then. The invasion should come much earlier.
I think for all the good Cozur does with this mod, at the end of the day the game itself isn't the best for this type of game. I'm a 100 and some odd days in to a game where I'm a vassal of Dragonstone, and once we defeated the Stormlands Pentos, Myr, and Tyrsoh declared war on us for no reason a few days apart.
If there's any way to make it so Essosi factions dont declare war on Westerosi factions that'd be great, but I doubt its possible or that simple.