My thirteen-year-old thought it was cool. I, on the other hand, started looking at my watch about 45 minutes into it.
The plot stinks (what little their is). The dialogue is hokey. Let's put it this way. Anakin and Amidala could've been played by Frankie and Annette.
My overall take is that they were so captivated by what they could do with special effects, that they lost site of what they should do. Everything is just incredibly elaborate. You know the first three were "out there" but they were simple in nature and therefore believable.
I did think the seen at the moisture farm on Tatooine was pretty good. It looked like the farm did in episode four, or at least what it would've looked like several years earlier. And Owen and Beru were pretty believable.
One observation I did make (actually my wife did when I was telling her about the movie). Anakin is a whiner.
Now we know where Luke gets it.