I have watched the anime and it is hands-down the best anime I have ever watched.
This book is no different. I LOVE Okabe and Kurisu so much I can't even express it.
This volume, the first of the trilogy is the start of a tale of brilliance, of ambition, of curiosity, of invention, of discovery but beyond all that, it is the tale of love, of sacrifice, of loss and of dealing with it.
But most of that is yet to come.
This book was just a start. It is perhaps my personal opinion (having watching the anime first), that it was just as amazing as the rest. Note, that I am in love with all the characters already. I am already in love with Okabe and his alter ego as Hououin Kyouma, Kurisu's wit and refusal to be called "assistant", Mayuri's "tu-tu-ru", Itaru's perversions; god! I can barely contain myself.
I'll conclude with just this... This manga will not disappoint you.