First, from the news page on the event it says "The Grutin Glowing Orbs serve as your entry pass into the world of Grutin. You can get these from Snow White Eggs, available from NPC Cluck Cluck Grutin or Yumi." Snow White Eggs don't provide Grutin Glowing Orbs, they only have egg shells, titles, and those papers you can exchange for recycling points, plus only Yumi sells Snow White Eggs, not the event NPC. Then I've purchased about ten of them, and only got those papers, so the odds of getting shells is evidently low, or my luck sucks more as usual.
The only thing I seem to be able to get recycling points from is those papers in Snow White Eggs, which only give two points per paper, but we need thousands of points to buy most anything. Am I missing something, was that really badly thought out, or perhaps not working as intended? It always opens to the fashion tab when I go to that option at the event NPC, but I can't sell any of the stuff I've got in there, so maybe we can sell those one day costumes for points? The whole recycling thing wasn't mentioned at all in the event page, so some info would have been nice.
The event zone I've only done a few times, once at hard, but the rewards seem really lack lustre, as all I'm getting are a few Bonus Keycards, a little Grutin Gold, and boxes that give me common crafting resources. Then even if costumes can drop, I have to wonder if they'll just be those one day ones that we can craft, in which case, this event zone would seem to be a waste of shells, which I'm kinda ok with, as it's annoying to do.
One thing that's always bugged me about event titles is how it doesn't say what stats they have on the item you get them from, only that they have stats.
From what I've seen so far, the only thing worth getting with shells is eight Giga Brooch Qubes per character, and weapon upgrade chips. I also again wish the event currency was account bound, rather than character bound, but if that is all there is worth getting, and doing this event, then I guess it doesn't matter too much in this case.
