I finished this at the weekend too. Thoroughly enjoyed it! Only downsides to me was the convenience of Zula being there, and I wish he'd done a little more with the bad guys. The scientist never really went past twisted evil guy and the Director seemed to be setup for a much bigger role than she was. I did really dig the spy though!!
I loved spending time with Zula. I really do love her a character. I loved what Waggoner did with the Alien itself. It was such a fun twist, and he was clearly enjoying himself while writing this! Recommended! Will get a review up over the next few days depending on the real world.