Hi Everyone, There will be a server check today 12th March 2016 at 22:00 Server Time (GMT), lasting for approximately 15 minutes. The game will be inaccessible during this time. Changes during this server check: Hittable objects should no longer cause map disconnections when multiple players hit them at once. Orbis PQ's "Storage" stage is now fixed. Players should no longer get disconnected for "Fast Attack" and "Mismatching Bulletcount" reasons. The MapleRoyals Staff. If you notice any strange issues occurring since this server check please do not hesitate to create a thread in the support forum.
PPQ itself doesn't give any rewards other than a Pirate Hat after a certain amount. Not sure on the treasure rooms though.
Did a few, they just dropped mesos https://royals.ms/forum/threads/herb-town-party-quest-guide.56050/