Bethesda does it again. Similar to Oblivion, but not a clone! Impressed!
Needless the game looks and runs great on a good system. I have an AMD X2 5600+, 2GB DDR2 RAM, and a Geforce 8800GT (512MB). The world feels bigger than Oblivion ever did and I think that has to do with the amount of buildings. Oblivion was mostly forest and fields and the modern setting makes it feel bigger for some reason.
The story is incredibly engrossing and the side quests keep you entertained along the way. The most interesting side quest so far has to be going to the National Archives and stealing the Declaration of Independence. It's funny to ask people about the Declaration while doing the quest. No one really knows what is it. Just some ancient document (God bless the Department of Education...).
The lock on system for shooting is an awesome new method of combat. Being able to target specific parts adds a whole new strategy to the game. Funny how both this game and Dead Space use this method and they released at similar times.
I recommend this game to fans of FPS who are looking for something unique from the typical shooter genre. I also recommend it to any RPG fan looking for a unique twist as well. Fans of Oblivion do not need to be told what to expect. They will love it.
Oh, and it's the only game that I can think of that gives the player the choice detonate a nuclear weapon to destroy an entire city. Props for that alone.