I agree there was quite a bit of deja Vu, but I still found it really enjoyable, (note: i had just finished cod4 for the second time before playing it) and as I said for a few days, ever game felt dull after it
Problem is that they did not seem to have changed it in the slightese. They might as well have called it a map pack or something because it sure felt like it. Nothing new. I also played COD4 twice, couldn't face doing that with MW2