I wouldn’t have bought the first 2 books if they weren’t dirt cheap and most of the series was several hours long.
The first book was meh. Not amazing but very in line with the rest of the series. But from book 2 onward it had me hooked. A smart plot by an intelligent MC making the best decisions he could. Then the sound affects put it a step above everything else I’ve listened too.
So many hours of good writing. Well worth it.