-1: same screenplay adapter as The Mists of Avalon, which succeeded BRILLIANTLY-- provided that the goal was to make the adaptation even MORE boring of an adaptation of Arthur than Ms. Bradley's original work.
+1: casting Danny Glover as Ogion. Fucking GENIUS.
-1: casting the kind of daft-seeming kid who played Iceman in the Xmen movies as Ged.
+1: Isabella Rossellini as the high priestess overseeing Tenar.
-1: the very disturbingly tight-lipped smile Ms. LeGuin produced on mentioning the series and outlining it, like she was thinking 'I can sell my babies but good FUCKING GOD they can't make me be there when they butcher them'.
Overall- it's very slightly in the plus column.