I've been enjoying this game fully for the past week. My strongest Pokemon so far is a Hypno with CP912 and I just need two more Eevees to have enough candy to evolve my strongest one. I'm going to try to use the naming hack to get a Flareon.
What's really amazed me about this game isn't how many people got on board (it was always expected this would be huge since it was announced), but how many complete strangers are socializing with one another over this game. I went to Valleyfair and MOA this weekend for Pokemon Go, and usually when I go to places like this, nobody says "boo" to me. I was approached by many people who could see I was playing the game asking about my Pokemon or if I've seen a Jynx nearby or anything like that. Even struck up some good conversations. It was a completely different experience than my normal solitary weekend outings.
It's funny some parks have good Pokemon and others don't, but I wonder if that's just the territory built into the game. Valleyfair had a plethora of Pokestops (Dinosaurs Alive by itself had about 10!), but nothing but Rattatas and Pidgeys to catch. MOA had less Pokestops but far more of a Pokemon variety (I caught my first Magnemites, Voltorbs, Koffings, Abras, and even a KABUTO there!), and kudos to MOA for being great hosts to the Pokemon Go players. They had phone charge stations in the rotunda and were really accommodating to all the people who came to the mall to play the game. But that's the whole point of the game. You have to go out to find which places are the best