it might've been the atmosphere that did it for me though. have you ever played the original? i took a few months of a break after the first mission or two, so it's not like it grabbed me straight away either... but after you start hacking everything things start getting more exciting. there's various ways to complete most tasks which is why the game is so good.

although i gotta tell you right now, don't take the bosses at face value, some other studio did the boss fights and they are absolute crap. don't worry about looking up walkthroughs for those parts because whatever.