Just finished the first 20 and got the Bunny Bomb, but I'm reluctant to keep pushing because i) the drops haven't been in my favour (80% were commons), and ii) I gained too much XP in the process, jumping two levels in the span of a 1/2 hour. I'm not a camper by any stretch, but if I was, I would be annoyed by the inconsistent XP awards for the same task (e.g. first hit yields 2 XP, but a repeat hit will drop 12), not to mention the XP dump for each milestone attained (had 4 of them).