If you are a fan of the animated star wars stuff by Dave Faloni this is excellent! I would bet that about 80% of the one star reviews are from people who haven't seen them. A lot of information and character development happened well before this. I don't recommend watching it without those backgrounds first.
I read a few one star rants including someone saying that Asohkas doesn't have character development....
*Spoiler* Trapped on a starship, in hyperspace, full of clones trying to kill you!!!!