Saw it an liked it. It's definitely the best of the prequels, though I think it falls short of the originals -- ESB at the least.
Things that bugged me:
- Padme falling apart so easily, after all the strength she portrayed in the first two movies.
- Stilted dialog between Anakin and Padme
- The rushed transition of Anakin to the Dark Side. Though we see the temptation building, his transition from "No, don't kill Palpatine" to committing mass murder -- in a matter of minutes -- was a bit rushed.
- Continuity issues:
-- Obiwan's age
-- Fighting styles (nothing to be done about that, in retrospect, but why was the original Vader/Kenobi fight so stilted? Obiwan wouldn't be old enough, per the timeline)
-- Padme's death is a disconnect with the later series. When Luke and Leia are having the discussion about their mother(s), Luke says "I have no memory of my mother", while Leia remembers her as dying when she was small; she was "stong, but sad". I expected Padme to live on for a bit with Leia before dying of grief. Or are they supposed to be talking about Mrs. Organa
-- Flying, fighting R2D2. As much as he kicks ass in this movie, they don't explain where it all went to.
-- Anakin tallks about the Republic, then the Empire two sentences later (though he wasn't around for the ammouncement of the Galactic Empire).
I did like all the foreshadowing of the future movies ... from the stormtrooper development, to the starship evolution, to Obiwan picking up Anakin's lightsaber, and the ending with Owen & Beru looking out at the setting Tatooine suns.