You can tell from the first sentence of the blurb that Keely is a Mary Sue.

"Keely Walsh has three doctorates, five older brothers and has never met a situation she couldn't handle."

She went to MIT at 13; she knows Krav Maga; she's gone through Marine Hell Week; she's gone to Sniper School; she's been trained with any and all weapons; she creates futuristic-only-seen-in-movies technology; she's a professional mountain climber; she's funny, she's sexy, she's perfect. Normally, this would bother me. But somehow, I liked her anyway.

Everyone she meets wants to fuck her, date her, or rape her. She is attacked 9 or 10 times, though it's usually not her fault. And she always comes out on top after handling the most immediate threat herself. She was too good at everything she did aside from feeding herself before fainting. Doesn't matter. I guess I was just in the mood for a heroine that could do no wrong.

The story really focuses on Keely and I would have enjoyed another chapter from Ren's POV. He was a total alpha that wanted to wrap Keely up in a layer of protective bubble wrap and keep her from harm. But she wasn't having any of that shit. And his response to her strength and hardheadedness was charming and amusing.

I enjoyed the plot, though threads were left dangling. I assume they'll be dealt with in the following books of this series... it just wouldn't be fair for the DoD traitor to not ever be revealed after causing so much trouble.

So basically, Keely is an entirely unbelievable but enjoyable character. Ren is swoon-worthy and awesome. The Walsh family deserves their own series. And the plot was action-packed and a lot of fun. If you can just suspend your disbelief for a while and enjoy a mindless read, I would definitely recommend this book for a lazy afternoon.

Edit: I should mention that there was quite a bit of womb clenching/spasming and alpha-growling. I know a lot of readers hate that kind of thing and I totally agree, but I didn't care.