Well it’s a direct sequel to the 2000 miniseries, with roughly 2/3rds of the cast returning (the actors for Paul, Chani, Gurney and Irulan came back; but they had to recast Jessica, Stilgar and one more that I don’t want to say for spoiler reasons).
If you’ve seen the 2000 miniseries and liked it then you’d probably like the Children of Dune miniseries as it’s similar in production quality etc. It had to cut a significant amount out though because it covers both Dune Messiah and Children of Dune in a single 3-part miniseries, while the 2000 miniseries is 3-parts just dedicated to one book, which makes it super book accurate.