It's different but I like it. Even though I'm pretty addicted to this game at the moment (and Assassin's Creed 2 before that) I'm guessing that is because it's still new.
Just like I bought a PSP years ago because it enabled me to go online using wifi without having to log around a laptop, I also very much like that the PS3 plays media files (no longer having to use rewritable DVDs to watch something, instead it's simply copied to USB stick) plus it plays Blurays, so I can buy Blurays without having to buy a separate Bluray player.
I also like the trophy system, a way to keep track of what you've been doing, without having to remember it all
and now that they're posted automatically to facebook (probably to the annoyance of my facebook friends) it's even easier.