The good:
Sound mix is excellent. Sounds much better than the 2004 DVD's.
Cantina aliens.
The seamless removal of the ronto.
The Alderaan destruction looks great. It really looks like a planet exploding, instead of a stock explosion over a painting.
The bad:
Some SE elements are still there that I'm not really in favor of. That would include the Mos Eisley crane shot and the trooper getting off the dewback.
The Falcon escaping the Star Destroyers doesn't look right. Mostly because it turns away from the Destroyer, yet the engines stay parallel to the screen.
An overall great job. I look forward to seeing the whole thing sometime next year.