tl;dr: A cringe-worthy garbage, don't waste your time on it
I may be somewhat spoiled by mostly reading good sci-fi from acclaimed authors, and didn't have high expectation while deciding to read a book by unknown author enticed by what seemed like an interesting premise. But I really didn't expect utter trashy garbage like it turned to be, especially not with a relatively high rating like it has. The plot and world building made no sense whatsoever (e.g. why do they keep years old pre-training backup of AI onboard, but never a recent one? Or spaceship with a sword for ramming, seriously?!). The characters were bland, two-dimensional, dense and bickering between themselves like a bunch of teenagers, not advanced AI captains based on minds of veteran human soldiers. The writing was of poor amateurish fanfic-level at best, 70% of book volume been dialogs exactly following template "blah-blah, X said. blah-blah, Y said. (repeat 100 times)". But the worst offender is cringe-worthy technobabble and technology. Author opted for semi-realistic ships physics, spends a great deal of time talking about collecting and expanding propellant, delta-V, gravity assists and so on, but clearly have no idea how physics really work, resulting in hilarious moments like ships "assuming geostationary orbit" around tidally-locked non-rotating satellites, ship hovering above arbitrary points on planets, landing and taking off planets at will, black holes "sucking" object into them and so on. I'm perfectly fine with fantasy physics in sci-fi if it is backed by the world's lore, just let them have anti-grav tech or something, that's fine. But pretending to have real physics but then completely f*ck it up is beyond pathetic. Also, the author frequently uses existing modern technological terms, but evidently having no clue what they actually mean in real life, so he uses them mostly incorrectly. Just to name a few hilarious examples: he calls a ship's internal knowledge database a "cloud storage" *facepalm* and at one point one AI character in futuristic hyper-realistic VR environment reprimands another for using "ray-tracing shadows" as wasteful. *double facepalm*