I finally finished The Peacekeeper Initiative by Glynn Stewart. Something about his style of writing is making reading it feel like a chore, though I can't specifically point out any big flaws in the storytelling. There's nothing exceptionally great about the prose, but it does its job of delivering the story. Workmanlike is how I would describe it. Most characters end up feeling distant and not particularly memorable. There's a man that appears on almost every page but the only thing I can tell you about his personality is that he's African and yes, he's black, as the author remembers to specifically mention two or three times in each novel. Other than that he's just a voice that reports intel to the captain, like most of the other characters. Besides the captain MC, only his diplomat friend and the Irish alcoholic leader of the fighter squadron get fleshed out at all, but I wouldn't call any of them particularly memorable either. But the characters aren't really the focus.
What I like about Stewart's writing is that he obviously takes his sci-fi worldbuilding, space combat tactics and physics seriously. No, I wouldn't exactly call it hard SF — there's a number of magic sci-fi technologies that enable a very familiar feeling space opera setting, not just one or two necessary evil "big lies" — his spaceships have not just FTL drives, but also artificial gravity generation, inertia dampeners and shields — FTL communication also exists in the setting, although circumstances force the protagonists to lose access to it in the first book, meaning in the second book they have to rely on FTL drones to act as couriers for interstellar comms.
It does feel like the author did his world-building in reverse, instead of defining a few rules for his setting and projecting the likely outcomes, he looked at a generic space opera like Star Trek, and worked backwards to figure out a minimal amount of fudging the science to get something resembling that, without going full handwave mode.
All the technologies and their consequences are well thought out, and their capabilities and limitations defined. The gravity tech performs double duty to not just make space travel comfortable, but also to form the basis for a shield technology that relies on a shear in time-space to repel incoming beams and projectiles. And FTL does not only enable interstellar travel, but is also slapped on missiles to allow them to "skip" past shields and detonate warheads inside enemy ships.
Even better, distances, velocities and accelerations are all defined in real world units, at all times, for all ships, especially during battles. Cowards are the sci-fi authors who don't do this. There are no ships traveling at "speed of plot" here. ETA's for ships arriving from FTL jumps are tracked. Exact numbers of missiles launched in volleys and their yields are also mentioned.
Looking at the impressive size of the author's bibliography, he is obviously prolific. But I suspect his output could be better if he spent more time polishing and remembered to give his characters personalities.