The Achilles heel (if there is one) is that the game is not something you can pick up and play whenever you happen to have a free moment. You have to be able to get up and go for a walk. Candy crush et al. can be played on the bus, in the restroom, in a meeting, on the couch, etc.

That must depend on where you live. I've caught quite a few Pokemon from my couch.

In particular, it depends on your GPS quality and signal-proofness of your walls. From my home, I get weak enough reception that my character often runs circles around the neighbouring blocks, sometimes even getting close to the Pokéstop down the street...

Also, bus is a perfect venue to play the game. Personally, half of my game activity is logged on a tram.

> Also, bus is a perfect venue to play the game.

When I accidentally get stuck on a bus in rush our, Pokémon Go makes that much more tolerable---if the servers aren't having rush hour trouble.

My work is right by a Pokestop so I just turn it on to collect Pokeballs and dump a bunch of potions & revives.

I don't think the games flaw is making people walk around. That's what makes it unique plus the AR part. I think the flaw with Pokemon Go is trying to keep people interested, just like every other game.

It depends on where you live, but that in and of itself is a flaw -- ideally the game wouldn't be less fun for people who don't live in cities/large towns.