Just by taking away his goofiness, his "Jar-Jar" moments, he comes off as a stronger and more heroic character. The thing I wish I could've improved is that Han really doesn't have much of a character arc, but the material isn't there to improve that. His arc in the original is just a repeat of the last two movies, being jealous of Luke and not sure if Leia loves him, but instead of handling it like a smooth scoundrel, he handles it like a kindergardener in Jedi. So I removed that. He's a stronger character, for certain, but he still doesn't have very much to do.
The DVD files are rendered. Hopefully I can put the finishing touches on this today.