This book will break your game.
It's another example of Catalyst shoveling content into a book as quickly as possible to make some money.
It's clearly not been playtested, is totally unbalanced and poorly thought through from a mechanics perspective.
it also has some bits that directly contravene canonical shadowrun lore on magic.
i.e. it's mostly crap.
There are a few good things in for aspected magicians but that's about it.
if you have any concern about the horrific tilt towards magicrun that Catalyst has purused as part of 5e then this book will break your table.
My advice, avoid entirely.
On a separate note I've read all of "featured reviewer" Sean H's srun reviews and they are totally ill-informed and universally 4 or 5 stars for even the most broken drek. He's obviously a shill to be avoided at all costs.