Ah, the manga, such memories. I remember one tome I took on a long trip, which I intended to have me entertained for at least three or four hours but... the 80% of the dialogues ended up being "Bang! Bang!" and 60% of the panels were blood in some way or another. So yeah, fun times XD
All in all, not a bad thing, but you have to find a reason if you want to finish reading it, otherwise it might be a bit dense for some.