I found this after I read Crookclock which is from the same author.
The story of this one is the best one the author has made. It's more thorough and has more depth.
The artwork is also amazing. It's unique and doesn't have the manga factory feel to it most others have. That alone is worth seeing.
The characters are all likable, but some seem to lack growth, which is fine since some characters won't grow.
I really enjoyed this, and I think it's worth reading.