I can, a friend of mine dlled the beta after I mentioned it, and I decided to try it when I was over his house. The gameplay is extremely fun and has a lot of fluidity, something the original lacked. The enemies are more fun to kill too, as they react based on where you shoot them.
I even accidentally punched a guy in the ass trying to stealth kill him and he jumped forward in pain and grabbed his ass (shoot em in the balls, and they grab em when they die lol).
It looks extremely good, even on medium. Medium looks like high in the original, and the anamorphic lens flares are beautiful. The only thing is the textures look a lot worse then the first, but still not bad, not bad at all. Could just be the high textures are missing though, as I saw no difference from medium textures to high when we fiddled around with the texture settings in the console.