I really, really, REALLY like how a lot of the Job Quests bring back older NPCs. Builds a greater sense of continuity that I just adore.

Thus far my only complaint is the finale of the Summoner Questline. In Heavensward there was a lot of build-up and ceremony, complete with an awesome cutscene where you used Deathflare for the first time in the final quest. Comparatively there's nothing at all to officiate having learned to actually summon Bahamut. Just a frankly rather overlong single-player duty, and then "okay, you learned a thing, done." Was rather anticlimactic, especially after the prior duty facing down an army of Sephirot-egis. Which was a massive[ly annoying] tease just btw.