I don’t know why nobody has pointed out that these books are dreck. Simple and formulaic. Brain candy.
That said, I’ve read all of them (except the short stories). I guess that says something about my literary (ahem) taste. They are entertaining and fu, as is the character. And he is NOT Tom Cruise.
The show is really well done. I really don’t think it matters which book they do next - it will still be good. Hopefully Roscoe will be in the next one too, but it seems unlikely.