To keep it short and sweet : Overall really solid campaign just as good as the normal one except better because you can do it with a friend and there were no bugs whatsoever throughout the entire playthrough.
Some of the good things :
Using Falric as secondary hero instead of just adding some random made up hero is a really nice touch for the lore and immersion.
The game still feels challenging enough without being too easy or too complicated.
The last mission although not completely lore friendly has some really nice twists that I won't reveal but it's worth playing
The bad things (there are only 2) :
In mission 7, you have to run through the undead base with Muradin to unlock the dwarven base for the second player otherwise that player is just stuck with Muradin and a flying machine until player 1 has a big enough army to destroy the undead base. The base being pretty weak it's not a huge issue since Muradin doesn't die from it but it's pretty annoying to not have control of the base from the beginning.
The first stage of the bonus mission is painfully boring for both players. It is difficult for the Falrick player but it's still really boring to wait in between attacks for sometimes 3 minutes doing absolutely nothing. The Arthas player has it easier but it's still quite boring because it is just that easy.
I'm on version 1.29
When i create the game on battle.net i instantly get disconnected. When i do offline it works.
How to fix that? I tried hosting the 1st human chapter and i get insta disconnect when i host.