It was weirdly good for wasting time. 

I had a friend who was new to the game and I played through the whole Red War with him again. When we got to Ghaul I asked him if he wanted the easy way or the hard way, he said easy so Ghaul's head went pop.

I would happily play through that campaign again 100 times over with new lights and I cannot for the life of me figure out why.