The last two chapters really confused me, it gives a better understanding of the world of SnK, but I don't know what is going on half the time.
But back to springles, another thing is that both characters are quite likable (especially Sasha, with her great introduction) and I haven't seen anyone who dislikes them (well, actually there's a girl in my grade who doesn't like Sasha so I don't even want to talk to her)