Originally Posted by azarhal 
Killing people is easy. They die in 1-2 hits on normal. You can't survive more than 3-4 hits yourself though. I much prefer the stealth approach. It plays like thief, you can steal keys, use shadows, etc. I almost forgot how leaning worked and you have to pay attention to sounds as well, to not be seen.
How is the hardest difficulty setting? Can you try it?