Having lived in Tokyo, I sometimes get really annoyed reading books set there. Writers pull out the same old cliches that make you wonder if they have been closer to Tokyo than looking at a few postcards. Luckily, Tokyo Zero avoids that, with some awesome passages that had me nodding my head and laughing. English teachers as evil killing machines = priceless. And it's set in Koiwa. I dunno why that is funny, it just is.
I did find the writing rather varied though, some awesomely clever written passage and some quite tedious and confusing stuff. There is one section where the POV character is narrating even though he is unconscious. Seriously! Still worth read though.