Great game, forget about Tomb Raider, the original is always better.
The enemies have a great AI and they offer a great challenge to defeat, and it's a good thing, although the fighting seems great at first, but then it gets repetitive, becuase it lacks moves. The difficulty of the game isn't that hard but sometimes becuase of many enemies at once or escaping a danger could be quite difficult.
The likeness to Indy is identical, you can't refuse the fact that the character whom you're controlling is him, because of his voice and looks.
From the technical side I didn't find any problems, it runs perfectly on Vista Ultimate. Like 4 years ago I played it on my old PC and it ran great on XP also.
Let's face it, Tomb Raider was copied from Indiana Jones, Tomb Raider could be great in games but not as good as Indy in the movies, and this game certainly proofs that Indy could also beat Tomb Raider even in the gaming world.
The game didn't need any great changes to be an awesome one it just needs to be a bit more close to the movies.
Can't wait for another one, let's hop that the Indy game that was going to be released on the PS3 & XBOX 360 makes it to the PC also!