With the anticipation brought about by 16 years of waiting, I think the PT failed miserably.
The crux of the entire PT was laid out in one 5 minute scene in A New Hope. It's not like there was a whole laundry list of requirements that had to be met:
Anakin was Obi-Wan's student. He was the best starpilot in the galaxy. He was a cunning warrior and a good friend. He followed Obi Wan on some damn idealistic crusade....
Except for the seduced by the dark side part and the droids belonging to Captain Antillies, there wasn't a whole lot more that needed to be a part of the PT. Rather than try to develop on these themes throughout the 3 movies, Lucas shoehorned them into ROTS. Yeah, we saw the pod race...little Anakin can fly, but it came across as forced. We never needed to see Han Solo smuggling; we could tell he was that way just from Ford's performance....and that is where the PT ultimately failed IMO.
I still have hope for the next trilogy.
And by the way.....the script is officially complete.
Any thoughts or hopes for the title of Episode VII??