The conclusion to K. M. Shea‘s Gate of Myth and Power trilogy ends up quite good. All the important subplots are wrapped up and none of the developments feel particularly forced. There’s still the matter of the organization behind the antagonist, but that will presumably be addressed in later Magiford-related trilogies.
A work by the same author (unrelated to the above and set in a fantasy world), the Elves of Lessa trilogy (RED ROPE of Fate, ROYAL Magic, & The PRINCE’S BARGAIN) takes a particular romantic formula and applies it to three different couples across the span of a few years. While the oblivious love theme does get a bit old by the time you reach the end, each character has their own unique attributes and the background storyline manages to continue progressing apace.
It’s a remarkably engaging set of novels with a detailed setting and amusing character interactions… enough so that I may have to pick up the author’s other trilogies after all.