I would say it is very similar to Deus Ex. A much bigger open world and better graphics, but similar gameplay style. RPG character build, futuristic city, different ways to complete missions but shoot outs and stealthiness seem to be pretty big. A compelling story.
I am loving when Johnny appears during dialogue moments, it's so cool how he just fades in, chats with you and all of the sudden is gone.
I think what I dislike the most is the difficulty level of this game. Playing on hard is really challenging, I know these RPG games typically start a bit harder because your character is underdeveloped, but man, it takes SO much to kill someone. I spent a solid hour last night just trying to complete the Automatic Love mission because it was so damn difficult to escape. That mission took away all your guns so you had to use whatever you could find or steal off a body. Made me get good with a knife, but took me soooo long and so many tries to finally get it complete.
Part of me wants to lower the difficulty level, but this isn't even the hardest, I feel like this (hard was the highlighted difficulty level) was the way the game was meant to be played for most people so I'm going to stick with it still.