Today I watched the series finale of the TV series.
I have not (yet) read the book series by James S.A. Corey, so I cannot compare the two.
I like the series, even if the final (6th) season was too short. Lots of threads were closed, but some are still open, should the series get a continuation at some stage.
I cannot fully recall the first seasons, so at some stage a re-watch of the series is in order I think getting and reading the book series may be a good idea.