I'm a long time shadowrun fan. I own almost everything published in English, just missing a few things from 2nd edition era. And I think is probably the least useful thing I've ever bought. I am not sure what it is supposed to be for? If you are familiar with all the shadowrun lore, its mostly going to be annoying because of the "unreliable narrator" angle giving half truths or straight up propaganda. And if you don't know SR lore and were hoping to get a leg up, this isn't going to help you because its almost completely detail free.
I mean, they drop two new Great Dragons into the world. And sure, I've long thought that there were too many European Great Dragons and not enough others. But if you introduce a Great Dragon and all you can find to say is "She lives in India and likes nagas and buddhists", what exactly is the point?
The whole book is just full of fluffy, detail free blurbs on various things. Some of which are just oddly wrong. Like the Astral Space Protection Society article saying they are bankrolled by Hestaby, which that's histroy and Wuxing bankrolls them now. Which is referred to in another article on another topic.
Its sometimes amusing, but its definitely not informative.