Be aware gentle reader, that warhammer novels tend to be dark, and not "oh no, that character died" dark, its the kind of dark where a character is repeatedly abused over and over in a hopeless situation with no reprieve nor redemption. This brings us to Knights of Bretonnia.
This review will be as spoiler free as I can manage, but in order to properly review it's worst offense I must reveal a persistent character flaw. So be warned.
Calard, the trilogy's main protagonist is dull. That's an incredibly bad start to a novel, but it is true. Mr. Reynolds went perhaps a bit too far in trying to portay a typical knight, as even the personality is typical. He lacks any interesting insight, and often stumbles into situations that could have been avoided through a moment of rational thought. This leads to his second flaw; Calard's character arc is basically non-existent. Throughout all three novels in this omnibus he remains the same hot-headed, borderline cruel, and frankly uninteresting individual. Reynolds may have been trying to imitate the Stoic Geralt from the Witcher series of books, but Calard lacks any of Geralt's wit or philosophical views that make him such a great character. This is so painful because there are many other characters that Mr Reynolds did very well such as Calard's persistent rival, or Dieter or Reolus, etc. These other characters are more fleshed out than Calard, smarter, more interesting and more engaging. This is why I removed two stars. The main character can't have such a crucial element be blundered.
On to the good stuff. Mr. Reynold's view of the warhammer fantasy world is magnificent. He clearly enjoys the idea of Bretonnia and frequently goes into detail about distant lands or places we won't hear about again, just to flesh out the world or mention a small detail that fans will love. Many of his characters are likeable and will leave the reader looking forward to their next appearance (Dieter was quite a fun character), there are characters with more depth than Calard and deeper Arcs. The adversaries in all three books are well written with clear and often morally grey goals. Some of the antagonists while definitely vile, leave the reader empathetic with their plight. The famous "grimdark' elements of the warhammer setting are here in full force with multiple instances of gruesome scenes and acts that I still sometimes think about (and enjoy, because that's why we all read warhammer, it doesn't pull it's punches).
The world feels alive with colorful characters, dark and disturbing scenes and characters, and is solidly set in the warhammer fantasy world. Calard is the only real blunder to speak of, which unfortunately is quite a big one. Overall I'd say you could pass this novel if you're not a fan of Bretonnia. But if you do decide to read it, you'll find yourself enjoying a decent novel.