This is a perfect example of a celebrity 'author' using their name to sell mediocrity. Had this been written by an unknown author it would not have reached the bookshelves. Cliched; one-dimensional characters; basic vocabulary; confusing use of flashback; reads like a teenage coming-of-age novel.
I certainly won't be waiting impatiently for the next one, as undoubtedly there will be. Names sell books today not talent.