If I would have never turned into a power hungry guy who exploits the heck out of this game, I think I would be just like Bond.
The game takes a while to get used to... skilling and leveling up is pretty tough, and many of the missions are not explained very well at all. (and the graphics suck) I personally enjoyed being a Thief though, it was so easy to get to the top in that guild, and you can use a lot of trial and error.
Some decisions you make just stick with you until the end. And Because you can spend hundreds of hours going in one direction, decisions suck. (assuming you like the game like I did
)
Your first run through I suggest you ignore the story all together and explore. Steal and kill to make money and level. second run, be very careful about your decisions, remember every NPC you kill is gone forever, and can make road blocks for yourself.