Nice dungeons, hard but not impossible [the first two], plenty of new and interesting rewards, including Birdie. The courage system not too onerous and fairly well developed.
Telling us there's a huge buff for fliers without telling us what that is, unless you count a semiobscure hidden mention of defense.
1200 things dead by fliers in one day? When there's only on flier besides birdie with any attack?
Evil Giant Shade
The graphic on the left of the enter page showing guild progress toward various goals.
First, it says we get 4,000 tickets for x points, but doesn't say those tickets come at the end of the event.
Second, it took a long time to find this out because those chest are sod___ small it's impossible to click on them.
The information about various aspects of this event is severely lacking, despite the fact you have information screen on your banners.