I'll share some of my thoughts as well.
Could have been better:
- Snack Stand. Although, it was awesome to get it as a reward for completing the quest chain, considering it's effectiveness, it was quite expensive in the shop. I really like its concept, though. And all the other buff buildings as well, like Footie Pitch or Spring Park.
- No seasonal adventures - I believe it's a very cool way of bringing some change into everyday gameplay and increase overall activity and interactions between players. Especially considering how few balls adventures gave us.
- Getting the 1k collectables achievement was quite tough. I'm happy with the other achievements, though.
What I liked:
- The quest chain - I think it was brilliant and one of the best event quest chains so far. It seemed like the rewards and tasks were actually quite balanced and reasonable. Also, most of them were not doable in just 1-2 clicks. I, myself, didn't have the PvP Heavy Infantry part, however, I do agree with those who say it was a bit unnecessary. Seems a bit out of place.
- Event shop - Aside from Snack Stand, I'm satisfied with the rewards. I enjoy completely new things being implemented (Stone Geos), and we can always use a new Lucky Explorer.
I like the challenge in events, however, this time it seemed to be a little bit on the "too difficult" side. In general, I'm still happy with the whole event. Adapt to what you've got and go with it.