Having only put any significant amount of time into Hitman 2: Silent Assassin, I don't have much experience with the series. I briefly played Double Agent, and didn't like it, and I'm not much of a stealth game fan. I picked this up on a whim for cheap, and the series has certainly improved. The graphics are terrific, and the stealth feels not only more flexible, but more forgiving. I don't want to turn a mission into a shootout, but I can if I make a mistake. It also adds an element of replayability trying to perfect a stealthy assassination.