I preferred the SiFi (er, SyFy) Dune miniseries over the David Lynch theatrical release. It's obvious their budget was much more limited, but I though the story was far more true to the source material.
I don't know the Source Material, but, I definitely found SyFy Dune Miniseries better than Lynch's
Matter of fact, I believe their Mini-Series overall have a great reputation, the only ones I've heard bad things about were the EarthSea and the RiverWorld ones. I didn't particularly care for their Wizard of Oz one, but, it was well received, so, it seems in this case, the problem was me, not the MiniSeries
One Day I hope to be the Man my Cat thinks I am
Where are we going? And why are we in this Handbasket?