Fun so far...
Graphics: I would rate it 8, not the best, but pretty damn good.
Sound: I love everything about it, Guns and blade sounds awesome with surround sound. I'd rate that 9.
Gameplay is fun, ain't nothing like running around chopping some fooz up with the blade. I like the finishers when you come up close to the victim, it was pretty tight.
It's almost like RE 4 mixed with Gears of War, so if your a fan of that then you'll like it for sure. It's a decent game to play and well worth the money, if you can find a deal on ebay or craigslist, I highly suggest you pick it up, if not run to gamestop/best buy/ or wherever you buy your games.
I tried the online mode and I wasn't that happy with it, I guess from all the Call of Duty 4 and Team Fortress 2 really takes the cake. I only tested it for 30 mins and I had to stop, It's not the best, but it's one of thoses things that you just want to taste a little sample then forget that it was ever on the disc.
Overall:
I'm happy with this game and I'm pleased to finally have my copy, If you don't have it yet. You could rent it if you don't have the cash, but if you do have money. Read some more reviews or just go with that feeling I said about RE 4 and Gears of War.
Hope this helps and Enjoy killin'!!