If you've seen the anime, then this only fills in some tiny gaps with regard to history and some other things the characters were thinking of.
Overall the story is good. I don't quite like how we need a male vessel to tour the story with, but Lafiel is strong in her own right and Jinto just looks like an ass.
Honestly I don't see how this is really "Space Opera" as it really only focuses on a small group of people, and to me a Space Opera, like a Soap Opera, focuses on groups of people.
This book only covers up to about the middle of the Lyuf Klowal part, around episode 6~7.
The only thing I find majorly wrong with this book is the use of Baronh all the time. It's like that one image:
Only the TL note is brief and then you have to glossary hop.