This was my third or fourth listen to the Iron Druid Chronicles on Audible and my first time to listen to the entire series in one go. All 9 novels as I have not gotten the 10 short stories available but may get them at some point.
In general, I do not recommend listening to so many books in a series one-after-another, it can lead to burnout and reduce the enjoyment from a series of stories. But I really enjoyed this listen all the way to the new book Scourged.
Luke Daniels is just as great in the last book as he was in the first book. His ability to create a strong audible differentiation between the different characters really brings them to life and highlights their different personalities.
Kevin Hearne does an amazing job creating characters that have different drives, goals, and personalities. From the gentleness and anger of Granuelle, the gruffness of Owen, and the lustful scariness that is the Morrigan, they are all wonderful characters. Atticus and Oberon are my favorite characters of the stories, but Owen and Orla are close seconds.
The book Scourged, the 9th, is meant as the last in the series (there is already a short story being touted as book 9.5). It is a good ending to the series and well worth your time.
I highly recommend the entire Iron Druid Chronicles series, although you may not want to listen to them one-after-another, maybe takes some breaks in between.