I can't say anything about the quality of the game, but the anime is brilliant. It's just so perfectly paced (I'm including the meandering first episodes with that statement) and emotionally rewarding.

If you haven't seen it, go! Watch it! Now!

I didn't even know there was a game before I started watching it.

And yeah, it, along with Gosick and Madoka are easily the best anime of 2011.

I've been meaning to play the game at some point since I loved the anime a lot.

My trinity for the year is Steins;gate, Madoka, and Nichijou.