Best RPG i've played since Oblivion!
Hacking was a well done feature in the game, it gave you choices such as taking money as well or things like nukes or STOP! worms which could help you in your hacking.
Also, when they said that the world would change around you, it really does. Cutscenes would change prior to what you did, say you intimidated a big CEO, it would carry over to the cutscene. Also, if you spare someone's life they might come back eventually in the future. There are many things that can change the universe around you.
There's not much of free roam except only where you were dropped off. But, there's a big freedom in what you can do while you are in the city you're in. Unfortunately, there are only 2 cities in which you can roam around, i won't spoil it for you. But, there will be many consequences throughout the game depending on what you do like i said before.
Money feels like a shortage at times, and there's no fail-proof system into getting money such as taking out people and taking their money or pickpocketing. But, this will keep up the challenge as well.
Also, when you play the game, you have choices in combat. You can A. Go guns-blazing. B. Stealthily go up to someone and take them out. or C. Be stealthy with a mixture of both going up to someone and silent weapons. (Obviously more options than these)
Killing people is different in this game. When you kill them they may never get back up, but you get less XP for it. When you KO them with something nonlethal, you get more XP for it, but they can get back up.
Overall, this is a must-buy game for anyone who calls themself a gamer, an RPG lover or stealth lover.