I love these stories, and I am happy to have a text version, since they tend to get a little dense and, as was mentioned above, it's a little hard to "reread" the last paragraph in audio.
One of the things I like best about these stories is how little I like the two main characters. That is, they're fascinating people, but they're also the kind of goal-driven zealots who absolutely terrify me. They ARE the sort of people who shrug apathetically at the deaths of hundreds and who kill allies when it becomes necessary with only the smallest twinges of regret. (I also like the magic system, because "esoteric needle" is fun to say.)
The main complaint I'd have is that Mr. Fitz is *so* awesome and amazing that Sir Hereward tends to get overshadowed. Like, a lot. Like, his only real contribution to these quests is serving as Fitz' beard, and when they are inevitably exposed, it still doesn't tend to even impact them much. That is, Hereward's presence is barely a minor convenience for Fitz, not even a crucial but passive supporting role.