In a word, AWESOME! everything fits (well in a concept of consistency marvelienne eh), causes, consequences (theory of the origin of super powers grabbed me and convinced), super heros aging (special mention to peter parker steve rogers and) etc ... the ratio x51 / Uatu ... everything is great ... except a few designs that can destabilize their style, it's still pretty average (I'm not talking about couv or illustrations in these fabulous intermediate chapters of alex ross) ... Requires all the same some knowledge of the Marvel universe.