i finished my first playthrough this morning @ 4am. Lol. Coudn't stop.
The game is simply awesome.
Also tried to do more of a stealth approch. But as soon as things get sour, it don't load a previous gamesafe, i do a Chuck Norris instead.
I did around 70 % without getting the alarm ringing.
Also liked the fact that if you do a lot of the side stuff you can nearly upgrade Jensen completly.
I wandered a lot around and so I got around 40 hours of game. So I will wait with a second playthrough, especially with all the games coming. Next week Dead Island, after Red Ochestra, ...
But sure thing I will play again.
Also, DLC incoming.