I have a love/hate relationship with this book.
I love that it delves into and uses Faerie lore and is mostly loyal to the source material legends. Which is not easy to do. The legends vary across much of Europe plus some cultures with Fae like creatures in all but name. What is unknown about them is nicely and imaginatively filled out in the book with quite plausible Shadowrun oriented lore. The book is filled with interesting clues, tidbits, plot ideas, intrigue and mysteries. I like the art as well.
What I hate is that it's for Shadowrun, which is at its heart is gritty cyber punk. With magic, yes. But still gritty cyberpunk. Introducing high fantasy figures blunts that. Especially since the Fae in their native environment are comically overpowered per the legends compared to even a Prime Runner. Even Great Dragons don't have as much power as a Faerie lord in his own lands. On the physical plane it's different. Powerful Fae flopping around Seattle like fish out of water and extending their intrigues would make for interesting games. But visiting them, with their vast differences in culture, laws, and norms, would be like a being a European dropped into Medieval Japan. You'd be novel and interesting for a hot minute. Then some Samurai would get insulted and test his sword you on.