Like the Player's Guide I bought this when it first came out. And sadly, it shares many of the Player's Guide's faults (art, layout, lack of bookmarks for the index).
It also has the problem of not giving much advice on how to capture the feel the author is looking for. Lots of behind the scenes and historical material explaining things in the player's guide, but not much on how to use it for what the author was shooting for. And sadly, this game needs a fair amount of advice. I'm an experienced GM and to me it needed the advice. I could write up my own material to make it useful to me, but isn't that what I paid for? For a start, advice on how to handle and use First Empire characters and technologies in the game would have been very useful.
Some better attention to world building, specifically how the gates are operated by the icons that seem to be largely controlled by the church and that has some interesting repercussions right there.
Anyway, again, I wanted to like this more (Arthurian space opera married to the FATE system), but it has some substantial flaws and would require major work by any purchaser to make it more useful for a GM.