Went to the Star Wars Detours panel at Celebration VI earlier today, and have a lot more faith in the show than I would have just going by that trailer.
The show is not like Robot Chicken in that it is not just a series of bits and vignettes. Each episode will have a story and Seth Green said the idea was to be like The Simpsons or Futurama where they have this huge universe to play with. There are three main locales for the show. The still under construction original Death Star, Dex's Diner on Coruscant, and Tatooine (mainly Jabba's Palace). The show itself seems to take place between Episodes III & IV.
The clips they showed at the panel make this show look a lot more promising. And having Seth Green there to sell us on the concept of the show also helped. Hopefully it will be given enough time to find itself (like so many other shows) because it looks like it could become something really special.