No, I did not play in it.
Watching a Korean fellow play in a boot leg video of the Beta. Noticed in the overworld monsters re-spawned pretty darn quickly, 15 to 20 seconds. The fellow stopped to open his inventory and ended up fighting the same group twice. In the instanced areas, no re-spawns.
I don’t much like the quick re-spawn, since we were told we would not see very many folks in the overworld. Why the quick re-spawn then?
Hopefully it was just for the Beta. Although I guess I could get used to it. I got used to WOW’s re-spawn, just not a fan of never-ending MMO mobs.