Minccino Research Day over, I went 4/44 though I still have 3 left to open. It was a fun event, despite the heat, a lot more like Clamperl Research Day last year than the Feebas and Lotad ones, albeit with far less interesting spawns. I'm not a fan of the gym, super effective attack, raid and rocket battle tasks, as they rely entirely on those being nearby (and in the case of the gym/super effective ones, controlled by an opposing team), but it's easy enough to throw those away and move onto the next stop if you have enough stops around you (sucks for rural players though). I haven't seen it reported but it's worth noting that Minccino's in 5km eggs as well, as I ended up hatching one during the event.
As well as all that, I caught my fourth shiny Rattata (yay...) and ran into one of my lucky friends, so we did a shiny Magikarp for shiny Magikarp trade.