In my opinion, this is the BEST mod for warband. I've only encountered one quest bug, (can't recruit the soldiers needed for the quest from freelancer guild) and the rest has been incredibly stable. I can't express how good this mod is!
That said, there are only a few slight things I can think of to make it even better:
-Some mods let you play as a hero or soldier after you die, this would make the mod so much more fun!
-Add towns/castles to the large empty islands in the west. Could also expand Aroulo this way and maybe even add a new faction if you wanted.
-Make more unique spawns have legendary weapons. Most legendarys are 2h or 1h/2h swords so you could add in some varitey and add more unique bows, crossbows, 1h/2h hammers, maces, spears, etc.
-Maybe add an easier way to get troops with wyverns or dragons, or let hired troops them. I'd love to make a dragon themed army!
-I've also seen in some mods to let you create a "camp" where you can leave soldiers anywhere on the map. This is GREAT for early game, and it gets balanced because you have to pay full upkeep, and the camp can get attacked.
If you wanted to see what im talking about with these mod features they are all in A World of Ice and Fire, which is also a great mod but I'd just get to many bugs there, and this mod is just so much better than any others I've played, so thanks for the work guys!