I agree fully with what Peter Tr said in his review.
I really, really liked Traitor’s Blade but for some weird magic elements towards the end and some crazy deus ex machina moments that didn’t add up for me. Therefor just half a star shy of 5 stars.
They should really make an audiobook out of this series. I’ve seen them make ‘em for far worse books and this gem utterly deserves it.