Just finished today also.
Absolutely great book,one of those where you look at the amount of pages left and think to yourself "Just how will the writer wrap up so many plot lines in so few pages?"
Excellent story,excellent characterisation and what a great setup for the finale.If this is how the 'more integrated' novel verse bows out,then this is a fine way to do it.
BTW,loved the Atia character and wouldn't mind seeing her again.
One slightly nerdy point,the disgraced admiral Leyton,named in passing here as Robert was previously called James IIRC.