1) Too soon after the previous event
2) Too expensive - most "quests" demand that we pay goods, and WAY too many goods
3) The rewards are a joke - I mean, 1 minute Instants? One MINUTE? When upgrading my Main Hall takes 2 full days (and that's with a Builders' Hut boost)?
4) For some mysterious reason we are required to produce non-boosted goods, so we are forced to build non-boosted manufactories that we will tear down as soon as we are done with the event
Overall this is a very diappointing event, and the worst part is that, according to what Marindor said on Beta, no changes will be made to it because of how little time there is until the event comes to live. So we're stuck with a very expensive event. Sure, the reward is pretty, but that does not make up for the bad stuff.