These really are good books, aren't they? And both readers are excellent, so you don't have to worry about which one is reading a particular book. (And unlike some other series where there's a narrator change, there isn't any disconnect with the change in narrator that I've perceived.)
Personally, I've been going through a period of re-reads for my audio books. Prepping for the next in a series by reading the last couple leading up to it. Both favourite series, the Liaden Universe and Cherryh's Foreigner series. The reader for the Foreigner series, Daniel Thomas May, is excellent, and the readers for the Liaden books are good to OK. Sadly, they didn't get a single reader for the series, and a couple of the books aren't well read. But I'm not hitting the real clunker on this "catch up to where we are" re-read.
The interesting thing for me is how much I get out of these re-reads. I catch nuances that I simply missed the first time around as I was mostly focused then on the plot, and this time around I am able to savor some of the finer details.
Of course, the other advantage of re-reads is that I've already paid for the book, thank you, and it's keeping my costs down. But NOT doing anything for my TBR, but that's a different thread.