Minesweeper can take longer; this game is a 90-minute metaphor. It is nice looking and atmospheric, although definitely not for young children (no adult content, but the theme will be completely lost on them.)
definitley not for everyone. i really enjoyed the art style. the game is pretty short but i got about as much out of it as i wanted. It's a very artsy game. the story is about as deep as you want to make it. i didn't really like any of the other games except journey. flower was kind of cool for 15 minutes then lost it's appeal.
I would say definitely worth a rent if you're interested. too short to really justify a purchase.