My latest listen was the unabridged version of "The 5th Horseman" by James Patterson (& Maxine Paetro) read by Carolyn McCormick...

The book was okay.  The reading was okay.  The use of music to attempt to add drama was mildly annoying, but it was used infrequently, so it wasn't too annoying.

Warning - plot spoilers follow...

My big issue was that the book just wasn't that exciting.

There was no exploration of what drove the killers to kill.  No insight into their psyche.  In fact, the "car girl" killings seemed almost like an afterthought; why have two totally separate cases, one of which just gets solved neatly part way through the book?

And what about some further expansion of the core characters?

Rather than fine dining, this fifth novel in the Women's Murder Club series seemed more like fast food.