[MCH]

Yes, I liked the first few of the novels...
However, as the story lines continued to diverge, and diverge, and diverge... well, I lost interest.

Totally agree. I read up through the 6th or 7th (lost track) before I stopped reading them. Somewhere at that point they got boring & irrelevant, full of pointless, rambling character introspection with almost no story line. The first 2 or 3 in particular were really good though.

[MrB]

I had the impression that he wrote the first one, in which (at least) I got the impression that the protagonist killed THE bad guy,

then thought - “hey, I could stretch this thing out considerably...”