All Community Days have gone very well for me so far.
Pikachu: Got a Shiny at the last moment. And a lucky 100% Machop in the middle of it.
Dratini: Only one Shiny, but I don't mind. My green Dragonite is great! Also an 100%, that was quite a run to get it in time.
Bulbasaur: 4 Shinies, a 98%...