I've got the demo of this, and I thought it was pretty good. However, three words stick out at me. "Too Much Repetition". What, so it's alright for the COD series to be the same game every year, yet when a different game's slightly samey in places, you HAVE to mention it? I'm sorry, but I saw it with Borderlands 2's review as well, and a couple of other games where you same it's a little bit repetitive, or words to that effect.
And yes, I enjoyed pinning enemies to walls as well, thought that was rather amusing. But I have to admit, the guns were terrible.