The controls were easy to take a hold of and learn but some of the in-game puzzles were harder than necessary. More often than not, I found myself searching the net for a clue to get past the really tough parts.
Aside from that, halfway through it all I had lost interest and decided to continue the whole ordeal with videos on youtube. The game is only worth a rent for its good graphics and stylishly constructed cut scenes and not for keeping in your home library.
I spent 3 hours with this game trying to figure out the puzzles, and when I got to the end, I was killed because I didn't understand one of the requirements. When I went to try again, guess what? Because I didn't "save" (which I never figured out how to do)... I lost all 3 hours of progress.
Be sure to read the manual carefully before playing this game, as NOTHING is intuitive and there is no "training" before you're tossed into combat with no idea even how the controls work.