I did not play at launch, I did not have prior expectations. I played the game when it was patched to hell and back. It is visually stunning and performs well, with minimal bugs throughout and maybe one crash. The combat is solid, though enemies can be spongey and guns don't always do the damage I want them to, and the stealth may as well be nonexistent. The hacking is useful, but I didn't find myself spec'ing into it very much so I didn't get to see its full potential. The story is excellent, the dialogue is engaging, and the characters are memorable. The only thing I wil say is that it made me cry, and that never happens with games, with the exception of Silent Hill 2. The combat is the only reason why I did not give 5 stars.
