Although the book started off okay in an off-kilter way, it ended up sinking below my original rather low expectations. It tries to be funny but mostly it falls flat. It's more sigh-worthy than silly. I wouldn't go so far as to say it was predictable but it was largely unsurprising.
An other way to summarize the book:
-Overly-romanticized gangsters? Check.
-Entirely ridiculous villain? Check. (He even has a moustache.)
-Characters as interesting as wooden planks? Check.
-Too much repetitive summarizing? Check.