The sound effects are really badly normalized volume wise; At times, voices are so quiet it’s hard to make out the words; At other times there’s loud static sounds that nearly bursts the ear drum.

Personally I like to listen to audio books while I drive or go to sleep, but these books are really bad to listen to. Some sections are really quiet, no shot to hear them over the engine or the sound of the road; Sometimes, out of nowhere, there are loud sound effects much louder than the baseline narration volume. The other night the super loud outro at the end of book #2 promoting the narration studio woke me up, adrenaline pumping, because I thought someone broke into to my house.