These books are getting better and better with each read, there's nothing more I could ask of this series.
It's engaging in it's characters, plot, and dialogue.
The space battles are some of the most brilliance I've seen put to paper, we've gotten to know some of the ships and their captains (and Admiral for the Dreadnought) and so as we see them engage in naval battles we are, well I was anyway, heavily emotionally invested in their struggles as well as captivated by the beauty of watching space combat. They also felt very realistic, I could tell that the author had done his research and I even asked him to double check, he has.
It was like a dance. A deadly, terrifying dance.
The mysteries are starting to come undone but only a little bit, the protagonist and us are left to piece it all together one tiny jigzaw piece at a time.
I must say it again: this series deserves more recognition than it's currently getting!