Unfortunately, I was a late adopter and couldn't enjoy it as much since U3 was coming out and only a few people were playing U2 at the time. I guess that's the easiest way.
If you have ever played Killzone 2 and 3, imagine that in reverse as Killzone 3 removed the gravity effect but Uncharted 3 adds it. All the positives from the previous games return here intriguing story, great characters and amazing cinematic moments but one thing that caught my eye is the improved shooting mechanics. That was ND's intention. The gameplay is incredible, the new melee combat system is times better than what was there in Uncharted 2. I can be the first of the team, I can pull some nice plays, but I die often because I'm an idiot trying to work on that, it's already improving!