Assuming you haven't already bought a copy and are planning to, Thursday would be the ideal day to do so. If you enjoy werewolf fiction, this should be right up your alley. There's a bit of mad science in here as well (emphasis on the "mad"). Fans of Patricia Briggs' Mercy Thompson and Carrie Vaughn's Kitty should enjoy this, though I'm not fooling myself that it's as good as theirs. Also, if you haven't read those books, you're missing out because they are so very excellent, and I'd encourage you to buy them together with this if you're so inclined--because that also does things for the algorithms and what Amazon recommends to others based on your purchase.
And if you have already bought a copy and enjoyed it, remember that books make great gifts. :)