I just finished playing Uncharted: Drake's Fortune and I have to say I was thouroughly impressed. The world is gorgeous, the jungles felt alive with the trees swaying in the wind and the old spanish colony buildings were very detailed. The game introduces you to a young explorer called Nathan Drake and Elena Fisher, a journalist, who is recording the adventure as Nathan searches for El Dorado, the fabled city of gold together with his friend Sully (who is looking to pay off some debts.). They bump into another group of fortune-hunting bandits searching for the same thing and the race to get to El Dorado first begins.
I found the game to be rather easy for me, pulling off a lot of headshots and the puzzles weren't difficult to solve (though they did add a 'hint' feature for those that might get stuck). The gameplay is a mix of Gears of War action and platform elements from Prince of Persia: The Sands of Time. It took me about 11 hourse to play which I thought was a bit short, even with me spending a lot of time going over areas a few times searching for the hidden treasures to collect. Overall, I found Uncharted a great game, it made me laugh at times, the characters felt believable and reminded me a lot of watching Indiana Jones or Romancing the stone and even though it wasn't a long game I was happy that I was able to finish it. (Since I do have a life outside of video games!)
I give it a "Well worth a rental".
P.S: Unlocking the "Next-gen" filter is the funniest thing ever, if you are part of the games industry...or at least follow it, you will know what I mean ;)