It is way cool, and hats off to Genndy Tartakovsky for putting together such an imaginative and visually stunning side plot that even Hasbro had to buckle and make toys to go with it. I was just looking at the pile of figures and ships we have for these animated chapters, and was stunned. There is room for (and product for) some cool dioramas.
At the risk of sounding too anti PT, I almost wish they had gone back and told the story of Vader in this style, rather than CG layers over mediocre acting and a pre-determined plot. AOTC and ROTS had some cool moments, and the clones and Palpatine rock, well, I guess I'll stop there. At least they didn't try to make Ewok senators.