The zone-wide invasion this afternoon was easily the best MMO experience I've had. It was amazing.
It was like the entire zone was a one big raid instance and everyone was in one massive group. When all the rifts opened up on the map, I found a group of a dozen or so players and we started moving from rift to rift fighting back the invasion. After about 10 mins the group was probably well over 100 players. We started moving up the map and just taking on everything in our path. Huge bosses, dozens of high level elites. It was truely epic. We eventually broke through some kind of gate and met the final encounter. Two huge golems and a load of other elites. The whole thing was scripted so you felt like you were having an impact in the overall story.
This is what MMOs should be like.