After hearing all the hype, I downloaded the demo to see what it was all about.
I tried it out, and my wife tried it out, and we both thought the same thing: Hmm, we just dig down. Why would I want to do this? And with no local-multiplayer.. I mean, what the heck? No fun for couples.
The game just felt pointless. I couldn't find the fun, not one bit of it. Too bad, because I enjoy puzzle games and I was hoping for another good one.