Wow you still haven't got this yet?
I thought it was pretty decent. If your a Dredd fan, you will like it a lot. I would give it a solid 70%. Not really ground breaking, and it has flaws.
Vampires show up for NO REASON other than they are vampires.
It's rather short, and the story isn't as meaty as I would have liked.
But on the good side, it looks great graphically. It looks like Judge Dredd's world, and the cut scenes are rather beautiful. If you like Romero movie's, there is one level you will love when you are stuck in a futuristic mall with zombies, and just a Lawgiver and shotgun to protect yourself.
A really cool feature (which sadly gets chucked out around the time zombies show up) is the ability to arrest perps and give them a chance to give up. The Lawgiver is a great weapon, and it's great to hear Dredd's gravelly voice shout out insults. The rag doll feature is cool.
It's a solid playing system, but it might take a while to get used to. If your curious, rent it, it's not very challenging. But it's cool nontheless. And there are some REALLY awesome multiplayer modes such as zombie apocalypse and block war. I personally really liked it, but I loved the movie too so take it for what it's worth.