I have to say that I was also pretty underwhelmed by number 19 of 2013.
I really don't have much to say about it, mostly because my opinion of it really isn't good or bad, just indifferent. It just didn't live up to the quality of some young adult fiction out there. It's generally pretty well-received, though, so this is clearly not the opinion of everyone.
I think I gave it two stars ("It was okay") on Goodreads.