INGRESS showed that Niantic understands GPS but doesn't know what gameplay is.
I still play Pokemon Go and don't know why. It's not a good game. It's better than INGRESS, but still not much actual gameplay.
I started and stopped Harry Potter, because it turns out playing multiple GPS-based games is even less fun than playing a single, isolated non-game.
I think I noped out of Pikmin before I could even download it. Am I wrong? Is it compelling in any way?