Alright, I just finished "Light of the Jedi" by Charles Soule, and I have some thoughts on it, both as a scientist, historian, and Star Wars fan. I'm mostly coming at this from an Old Republic fan viewpoint.
THIS REVIEW WILL CONTAIN SPOILERS. #StarWars #StarWarsTheHighRepublic
The first thing I want to look at is the tone, because anything else is really nitpicky and the fundamental themes of the story are really the main basis for comparison. So I'm looking at this from a few angles, the big one being it claiming to be a "Star Wars Arthurian Romance."
For those that know anything about the actual Arthurian Romances, they fundamentally focus on diverging from Arthur as the main character, which one can conceptually argue this book does, diverging from the Skywalkers as a main character and focusing on other Jedi.
Where LotJ differs (so far) is in its content - there is no adulterous love affair, quest for a holy artefact, etc. Although in some ways the book touches on or sets up these possibilities - the franchise as a whole is very much about high fantasy storytelling.
I know Claudia Gray is not shy to include sexual content in her stories, and we have plenty of Star Wars tales of seeking "holy artefacts." So I certainly could see either of these happening in the future.