Finished Cassiel's Servant by J Carey, the retelling from Joscelin's perspective of the story in Kushiel's Dart; it was superb - all I expected and more; actually read large parts of it in tandem with the original book and it truly enhanced both. My Goodreads review:
After fairly standard stuff about warrior training with some cool stuff but not really anything special, the book just springs into action when Joscelin joins the Delaunay household and his and Phedre adventures that so delighted us when the original trilogy was published begin.
While the storyline is the same of course, I actually enjoyed reading the two books (this and Kushiel's dart) side by side as a lot of the dialogue either repeats or is similar but of course, the reactions and motivations are of the respective protagonist.
I would say that the Alban episode with Joscelin on the hill defending Phedre and the king's family against overwhelming odds and their last encounter with the skaldic king are probably the two scenes that stand out the most from Joscelin's perspective as in both he acts rather than reacts as is his usual behavior per the Cassiline motto "I protect and serve" where he generally cannot initiate aggressive action. So while I agree that overall Phedre's original POV is more dynamic, there is a coolness in seeing the storyline from his more restrained perspective, as well as his growth in appreciating, then trusting, and then becoming the lifelong love and partner of Phedre despite their seemingly opposite life choices.
It was also cool to see Alcuin taking to Joscelin immediately, Hyacinthe slowly realizing that despite said opposite lifestyles, Joscelin was indeed Phedre's one true love so to speak, and actually shocking Joscelin by telling him this directly as of course Joscelin by then was madly in love with Phedre but never thought of acting on that or more pertinently that Phedre could love one single person in that way, except maybe her childhood friend Hyacinthe, while the portraits of Melisande and the Queen seen from the emotional distance of Joscelin as opposed to Phedre's involvement with both quite add to the depth of the series.
I think that the novel holds well by itself, though reading it side by side with Kushiel's Dart definitely enhances both and it would be awesome if the author would continue the retelling of the trilogy storyline through Joscelin's perspective.
Overall, Cassiel's Servant was superb and delivered all I expected and more.