I own hundreds of audiobooks and I have listened to several litrpg and sci-fi series with a comedic lean. This series is by far the funniest I have ever heard. The voice acting in the dramatizations is amazing and really delivers the humor. As an experienced audiobook listener, I highly recommend this series to anyone that loved the early MCU phase one. You will get a distinctive Guardians of the Galaxy vibe.
Oh, and, yes. The series is over 10 years old (for the first book release) and, yes, as of book 6 the performance of the voice actors remains wonderful. I am going to purchase the rest of the series.