Actually, I've seen it and agree, it was pretty well done. I'm referring to the first feature film Dune, which was highly publicized at the time it came out and was abysmal.
Not so the miniseries. With the exception of the second book which was done pretty well, it was lifeless and dull.
In particular that nincompoop who played Gurney Halleck has got to be the worst actor ever: and it didn't help that all his scenes had Saskia Reeves or the other Jessica in.