PlayDevil has published an in depth review of the new "Borderlands 2".
"The missions are pretty similar, with the usual RPG tropes of fetch-quests, kill-quests, and a combination of the two, maybe with the odd little puzzle thrown in for good measure. I was pretty surprised at how similar the games were- part of me feels like it’s just an incredibly generous expansion pack. And incredibly generous it is." 85/100