Overall, I am absolutely impressed with the console.
-Voice commands have been flawless for me, and so much easier to navigate the system this way.
-Setup was pretty straight-forward and easy.
-The new achievements look great.
KI - I played quite a few matches of KI and freaking love the game. Thunder is my go to character (I knew he would be), and there have been some really good tense matches. I'm going to dive into the training more this weekend. On a side note, be prepared that you will have to unlock a lot of the stuff, including stages.
DR3 - Didn't get to play much, but I think the game looks great for what I have seen. I will tackle more this weekend.
Forza 5 - The game is gorgeous for sure. I suck at it though.
At least I do right now. I can tell that I'm going to have to put some time into it just to be competent. The rumble triggers feel absolutely fantastic, and I can't wait to see them used in more games.
Overall the only issue that I have seen is that randomly my video signal will cut out for a second or two. It doesn't happen in periodic intervals, but is really random, mostly when I'm in the "dash" though. It did it once when I was racing in Forza 5, but that was the only time when I was gaming. It's just kind of weird.
On a side note, at least here in the US, buying digital is a little cheaper due to one thing: tax free.