Love the archelogy mini-game. One of the most fun event games I've played, probably ever. I'm glad this one challenges you to play tactically.
It took me a whle to figue out how it works though. In hindsight,m the descriptions are good enough, but they were not clear enpough when I started. I didn't understand that the spade and dynamite ONLY work on empty-tiles-that-have-no-sand-in-them-and-are-unshadowed.
A litle tutorial game or video would have been helpful and seems easy enough to provide. A video especially.
The event building is gorgeous, but rather unwieldy. I'm not sure I can afford to place it in all my worlds, despite the looks and excellent stats.
Glad this event does not have divisions. Good challenges. All in all, if doing all the quests and playing strategically esnures winning a full upgrade, then this an excellent event!