I read it a few years ago (when it first came out, I think) and I remember liking it-- but looking back, I don't remember that much about it. I tend to have a pretty good memory for books and plots, so I guess that means it wasn't very memorable to me!
"eeeep!" says the insane chibling.
And then. . .
Co-President of the Obnoxious Teenager Club
"Quantity > quality! Remember that."
(P.S. Ze opéra ghost wants 'is paycheck.)