The first one his a classic, a masterpiece in terms of computer gaming.
The story, the gameplay, the graphics (at the time) were superb.
When I tried to play the second one, it didn't last more than one hour inside my computer.
Now the third... honestly I've a lot of doubts.
The story might be good, and like the trailer shows, it's breeding cyberpunk.
But the gameplay, I don't expect to be as good as the legacy. We live in a console world.
Only if it was exclusive to PC, we could have hope.
Auto regeneration, cover system and shooting not being stat-based, already means, it's a dumb down from the original.
What more "surprises" will we find?
It might be a Mass Effect look alike.
Is it bad? No. But it's no Deus Ex.
http://www.eurogamer.net/articles/2010-08-13-eidos-montreal-calms-deus-ex-fan-fears