The Force is okay with this one
Just got back from a midnight showing of Star Wars: The Clone Wars. It was entertaining enough, but I can understand why it's been getting such bad reviews. It's basically the prequels with twice as much action and cutesy kids' crap and half as much plot. The story and characters don't really go anywhere and it basically feels like an extended trailer for the upcoming show.
What I liked:
The animation (aside from the waxy puppet-like humans) was pretty good
The lightsaber duels and space dogfights were as exciting as always
Ahsoka Tano (Anakin's pubescent apprentice) wasn't as annoying as I feared. Between her and the villainous Asajj Ventress, it makes me wish Lucas had included more hot female Jedi/Sith in the prequels
Some nice interplay between Obi-Wan and Anakin
What I didn't like:
No opening crawl! WTF?
The music. John Williams' themes are barely used, and the new music was fairly awful
The lack of prequel actor voices (only Christopher Lee, Samuel L Jackson and, of course, Anthony Daniels reprise their roles)
Ziro the Hutt. To paraphrase Simon Pegg, makes Jar Jar look like fucking Shaft. Whoever thought it would be a good idea to have a gay, transvestite Hutt who sounds like Truman Capote needs to be blasted
The battle droids are even lamer than usual
Major characters like Padme,3PO and Mace have virtually nothing to do (though hopefully they'll be seen more in the series)
Overall, it's worth seeing eventually if you're fan, but don't rush out.