This is one of the richest and most evocative adventure products I’ve ever purchased, overflowing with plot hooks and inventiveness and atmosphere. It's probably the best hexcrawl product I've yet read (and I've read some very good ones).
It perfectly evokes a dark faerie tale feel (but not GRIMdark). Nearly every hex, far more than a hundred of them, has something interesting going on, complete with mysteries, secrets, fascinating characters with competing agendas, etc. A variety of random tables and encounters supplement the text, and there's a bestiary of unique creatures and specific denizens, as well as treasures specific to the Runewild.
It is rich with story potential, practically begging to be played. I had originally thought I would simply mine it for ideas with my long term, ongoing wilderness campaign, but it is so excellent as a complete product I may simply save it and keep it to run mostly as envisioned, which is high praise. I have been game mastering fairly steadily since 1978 or so and it has been decades since I've run something mostly as envisioned -- even really clever writers don't get a tone quite right or make things too challenging, not challenging enough, or make it all aobut combat challenges and not enough about role-playing.
I am incredibly impressed and will be first in line to pick up anything else written by William Fischer.