My Pokémon GO still works, even with horrible French networks
Google Cloud went down for about 30 minutes. I was lucky (or unlucky) to try to load the game when it was down and was getting nowhere.
Both PTC and Google login accounts went down at 4:45am for me on the way home from work. Had just knocked down the last Gym for the night 2mins from home and it crashed before I could put anything in. Gave it 10min before giving up and going home for some sleep.