Too much grinding! :) Add more quests or increase their XP reward at least till lvl 60 or sth. Blizzard reduced XP to 60 so many times... and this feels like original WoW :D
Is leveling a priest only hard for me? I completed all the quests in zones 1-10, 11-20 and im stuck grinding for hours in 11-20 since I kill 1 mob and have to rest in 20-30. Am I missing something?