I can't put into words how impressed I was with Adywan's work.
If I had to nitpick, I can think of just a couple of things:
1. I would love to have that last image of Tarkin just before the Death Star blows up. We all know Ady needed to remove it in order to add his Death Star as it begins to fire, however, I still miss it.
2. The torture droid needle. I know people complain about it looking like a little lightsaber, but I think the overall change outweighs the drawback. My solution? Keep what is there, but remove the blue hue. Simply make it look like the core color of a lightsaber (ie bright white).
In fact, can someone do up a still of that? A picture speaks a thousand words. If that were done, you'd get the futuristic sci-fi look to the scene without people complaining that it looks like a mini-lightsaber. Let's face it, it doesn't exactly work as a simple syringe either.
3. A change in dialogue. One of the things that most impressed me was Ady's work on the duel. I can't believe how much better it is. But the one thing I didn't like was a reversal in dialogue.
In the original, Vader tells Obi-Wan, "Your powers are weak, old man." Later, he tells Obi-Wan, "You should not have come back." For some reason, Ady reversed these lines. Personally, I always loved the"you should not have come back" line being the last thing Vader ever says to Kenobi in life. The change kind of threw me, but it is no big deal.
4. All of the smudges (fingerprints!) and startches/scuffs on Vader's helmet fixed. His armor is so much better in ESB and ROTJ. I just tell myself that Vader would replace his older armor with newer armor from time to time.
That's all I can think of. Everything else is great.
I think the best thing I can say about Adywan's ANH Revisited is that it is Episode IV to me now. I'll watch it at least 10 times for every time I watch the old OT and 20 times for every time I watch my 2004 SE DVD set.
I think that's the best compliment I can give.