In '97, I liked pretty much all of it, especially the chance to get to see the movies in theatres for the first time. As an alternate take to the movies, they were fun and fine. Hell, I even... oh, and I can't believe I'm admitting this, but at 11 years old, I even enjoyed "Jedi Rocks." So much so that I used to run my ROTJ tape back and watch it over and over and over again. Aaaaand I hate myself.
Looking back now, what do I think was an actual improvement?
I like the added Luke/Biggs scene.
I actually prefer the new celebration music over Yub Nub and the inclusion of the shot of Luke and Wedge, although I don't like the CG planet celebration additions.
The restoration of the mono mix's "Close the blast doors" was an improvement that makes that joke work.
Aaaand I think that's about it. I still think the most offensive change is bringing ESB to a dead stop during a tension filled chase scene so that we can see that Vader made it back to his ship alright. Seriously?!
But in a general sense I agree with doubleKO. The whole thing is offensive to me now, much more so than the prequels. They've done much more harm than good and should never have been made.