[This post contains spoilers for Fez, such as they are]
Fez reminds me of the puzzle books I used to enjoy as a kid. I genuinely delighted in unravelling the puzzle logic and secret places. This is pure, simple pleasure for me. Unfortunately, after collecting all 67 cubes (with some hints) I was left with a hollow victory. I loved playing Fez but sort of wish it didn't exist.
One major issue is just how deeply embedded Fez is in game history and culture. The blatant references to Zelda, Tetris and so on make it clear this is a game for gamers, in the most backward-looking sense of the term. Hey listen! It assumes its audience will appreciate a game reference on its own merits with no other reason for being there.