Finished the first one. There are moments of good buried in a lot of "merely okayish". It has a little bit of a "Hunger Games" feel to it in that way -- chosen one against the oppressive patriarchy -- but combined with military power armour fan-fiction or something. I stopped after the first book.

But if you want a rec:

Currently reading Embers of War by Powell. It's much better milSF in my opinion. The prologue opens with a war-ending Ender's Game style genocide, told in a few pages. Then it time jobs to post-war peacetime and most of the characters (including the sentient ship) are ex-soldiers coming to terms with it.