I saw it the other day and thought it was okay, but nothing special. I think it would have worked much better in it's original episode format - I started getting bored at several points in the film.
I liked the Hutt stuff, and actually thought Jabba's uncle was one of the most entertaining parts of the film - Anakin and Asoka got pretty boring after a while.
Christopher Lee was great as always, and Ventress looked very good and was used well. Some of the Battle Droid stuff actually made me laugh, like the droid who stuck his head round the corner to Ventress and asked 'Should I tell Dooku they escaped or what?', and got thrown off the cliff.
All in all, it was alright, and I look forward to the series, but I won't be seeing this again any time soon.