The scene with Han and Greedo looks awful. I'm not talking about the sandy clam-inducing change to make Greedo shoot first, I'm just talking about the very poor construction of that scene in the DVD release. That should have been left alone.
Other than that, I think the other changes are well done. I don't yet have an opinion about having Hayden in the final shot. People shouldn't get too upset about these changes. At least Lucas didn't replace Lando Calrissian with Jar Jar Binks in the Falcon in the last battle sequence, or anything like that.
The really obsessed Star Wars fans (which I am not) make it sound like Lucas is pissing in the Holy Grail, which he's not.
