It sucked. Felt like extremely lazy programming. Copy/paste pretty much the same mission a few times on maps that were already premade with the same predictable story line for each. And then give the boss champ a bazillion health. Took me forever to kill the champs cause I did it all solo. About 75% of my time was spent doing just that. All other enemies scaled just fine though. Overall, bleh.
As far as the story of the entire thing... it was okay but it's way too obvious what's going to happen in the long run. Assuming it's going to continue with the current direction. Jormag wants to "help Tyria" by getting rid of Primordus. The debate is 50/50 on if it's a good idea to ally with Jormag or not. Which ultimately causes conflict between everyone and that's what Jormag really wants (yet no one seems smart enough to figure that out). This then pits everyone against each other. And if we do kill Primordus, then Jormag doesn't have to worry about the only known weakness used against him/her/whatever too (another thing the npc's seem to not even notice). Personally, I think it's really dumb also to have Jormag's Champ with us during these fights cause Jormag then can see what weaknesses we have.
TLDR: BLEH