One word to sum up this compilation: WOW!
While Enigma Ship is fairly standard fare, it is actually quite enjoyable with a rather novel conclusion involving mutiny on a Federation starship.
The War Stories duology I think qualifies as the first time this series has had a definite sense of foreboding and obviously set up a future plot line. It was also good to see that the story hadn't come entirely out of left-field and features someone who has been aggrieved by the crew of Da Vinci twice previously - nothing like a good grudge match to heat things up.
What I particularly enjoyed about this story is that it shed some light of some of the characters we don't always get to see much of, and truth be told, up to this point, I was frequently confusing Faulwell with Stevens and Lense with Abramowitz. These stories did a good job of defining them as their own characters and setting them apart so I stop making the same mistake in the future.
Wildfire is the story that I think is going to define this series. Each of the televised series had this kind of episode: TNG was Best of Both Worlds, Enterprise was Azati Prime/Damage, which basically take everything you've known and punches a very large hole right through the middle of it.
What starts off as a fairly ordinary mission quickly becomes one of the darkest, most emotional, harrowing and action packed stories I have ever read (whether that be within the Star Trek franchise or not). I'm not easily moved, emotionally speaking, by reading novels, but this one sent me through a whole range of emotions, which took me by surprise. I've read David Mack's novels before and have always understood why he is commended on his action scenes, but I had no idea he was capable of packing such an emotional punch as well.
To find out this is his first solo project really is worthy of credit on his part. It's refreshing to know that neither he nor the overseers of the series are afraid to change the status quo, as this gives these independent spinoffs much more impact.
Wildfire, I feel, will have long reaching consequences throughout the rest of the series and I can't wait to read the next compilation to see how the crew of Da Vinci react to the trauma they experienced in this story.