I am really looking forward to doing all the new quests. I did Silverpine Forest on one of my teams (L25) and I was really impressed. I like how some quests will complete and give you a follow up 'in the field', without returning to the quest hub. Drop rates seemed to have improved for collections while mob density has decreased in conjunction with faster respawns.

I did SFK last night and I was impressed with the quest changes there too. It appears there won't be respawns anymore due to the npc's taking up positions after you down a boss.

I may not upgrade my accounts for a long time. There is so much to content to go through and enjoy before moving on. I am a little upbeat, almost happy, to redo all of Azeroth again.