I like the company, the feel of genuine production and the story, and purchase the product monogrammed with my initials, making it a potential heirloom. However, I was saddened when I tried to replace Field Notes into the holder, and it was just a bit too small.
Happy again, when I realized my Leatherman had the power to cut the replaceable cord inside, and then I wrapped the outer cord around the book. I think my grandfather would be proud. I didn't have to replace it. Most of the covers have too much additional stuff on them, that I didn't want personally. This does the job, which in the end, is what it's really about.
Just be aware of this detail if it would bother you too much! Field Notes will not fit well into the cover without modification. It's not the end of the world. Very happy I didn't have to replace it.