I watched it today. It was actually pretty cool.
A few things I noticed (if you didn't watch the trailer to avoid spoilers, you may not want to read my post...)
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I LIKED:
The animation. The tri-droids, Kit Fisto, and Plo Koon in particular really stood out and most of the characters (with the exception of Dooku and Obi IMO) look really amazing in this style.
I think I saw Tarkin standing there next to the holographic message of Mace Windu, as well as a Jango clone in an officer outfit. If that was Tarkin it should be interesting to see his character in the PT era. I always wished he had played some kind of role in ROTS.
And the trailer overall just made me a lot more excited than I had been about this. Even though it's probably gonna end up being a mediocre, kid-targetted movie/show in the end with little regard for Clone Wars continuity (Ahsoka).
I DISLIKED:
Anakin vs. Dooku? I don't like the idea of a duel between them in between AOTC and ROTS. Part of the 'effect' of the lightsaber duel at the beginning of ROTS was that it was a rematch from the AOTC duel, and that Anakin was finally getting his long-awaited revenge against Dooku. So I just think that's kinda lame.
Ahsoka, because I just don't like the idea of Anakin getting a Padawan, as cool looking as she is.
Something about the way Obi and Dooku are animated just doesn't look right for some reason.