It looks like it can be entertaining provided that the stories are there. In the end, while the show will have the Lucasfilm stamp, I'm sure the show's writers are SW fans so they may know what we want.
So since we see Asajj Ventress in the trailer, will they be retelling some of the Clone Wars 2-D stuff?
And also, judging from the brief glimpses in the trailer, the human characters look a little stiff.