Well, I finished the new single player demo and...ummm...WOW! The graphics, the sound, the environment, the gameplay! It's WAY better than I was even hoping. It's an FPS, but they've added a new twist by including some strategy elements. There are all sorts of subroutines. Basically, programs that give you abilities (better weapon ability, better armor, silent feet, virus protection, etc.). But you can only use a certain number of them at a time. So you need to be wise as to which ones you want to use.
Also, using the disc as a weapon adds a new element to the gameplay as well. Using the disc to block the enemy throws is pretty fun.
The game was pretty challenging, but mostly because you need to get used to using the disc. There was a jumping puzzle, but it wasn't all too bad.