Well I just beat the game and while I did enjoy the hell out of it, it felt like the ending was dragging on forever, but I kind of expected that anyway. The only thing that kind of felt odd was that the codec wasn't used enough, I remember in the other games I'd go through each person to get advice, this time I just had was Rose (who was no help at all) and Otacon.
So yes it was a great game, one of the "must have" games for PS3 and a great conclusion to a legendary series.