Soo... I finally got it downloaded and just finished playing through the campaign on PC. It was pretty good. Im not sure how to compare it to the first MW tho, because I played that on PS3, good graphics, etc, while this time around I waited ages for it to download to play on my comp with craptacular graphics and lots of lag. Lots and lots of lag.
Eventually I'll get a copy of it for PS3 and be able to play it how it's supposed to be played.