You can read more reviews on my blog, Words and Tea Bottles. 
 A free copy was provided to me through Netgalley in exchange for a review. 
 This Is Where It Ends is actually being released this month (January, if you're reading this review late) and it comes at a time when mass shootings are a hot button topic in America. All in all, I feel like this treated it relatively well. The biggest issue with people trying to figure out a mass shooter is them blaming it on mental disorders, and as far as I can recall, it never once mentions it, or at least tries to use it as an excuse with Tyler. Things have been going badly in his life, but no one thinks that's an excuse for trapping everyone in the gym and picking them off (the final count at the end of the book is thirty-nine, with twenty-something injured). 
 The book is told from several points of view, and unlike so many books that head hop, I felt like it mostly worked. Supplemented with social media accounts at the end of every chapter (mostly Twitter, with a blog every now and then) it definitely had the feel of a book that takes place in modern times as well, rather than someone trying to write a book about modern teenagers but using their own childhood a few decades ago as the springboard. 
 Besides treating the issue of school shootings pretty well, a selling point with this book has to be its diversity. Two of the points of view are girls who are in a romantic relationship with each other, two more are a brother and sister who are some sort of Hispanic (people who know the language better might be able to tell what country from the phrases and wording they use) and the brother is friends with a boy from Afghanistan. So if you're looking for an issue book with a diverse cast where their diversity isn't the issue, I'd say give this one a try and see how you like it.