Book 3 was in fact better than book 2, is a 3,5-3,75, an improvement from my 3,25 rating of book 2. The characters that felt out of characterization got back to who they were in book 1, and the author gave some explanations to what may have caused the problem. I think Pyne should have given hints in book 2, such as someone saying that they noticed the change of attitude in a monarch before, but at least I got an explanation.
Book 3 is more focused on politics than romance, and there's some problems with pacing. First half of the book is good for character development and characters interacting, but there's not so many things happening, at least not as important as what happens in the second half. Pyne doesn't rush what's going on, but there's no time to properly deal with some characters returning. I wouldn't mind seeing more on siblings relationship, Leda's mother should've been brought back, the addiction could be explored deeper, but it's ok.
I liked how Leda is flawed and not suitable to do what she's put on to do by others. Other authors like to write the main character as the greatest in everything, but Pyne wrote Leda as a plain woman, and this is who she is. I also liked the solution for the big problem, and the steps it took to get there. I just think there's no reason to explore more of this world, so I don't know if I'll read Elina's book. I want to read a different fantasy from the author, so I'll probably read whatever other world Pyne decides to explore.
Overall, I recommend this trilogy to those who like good romantasy and want to read something original, without faes, male, female and alfa/beta BS.