When I saw ROTJ, I enjoyed it but I really didn't care much for the Ewoks. I still don't. There are parts of the movie that are totally amazing and other parts that I still dread to this day, but I'm not the type of fan that's going to up ROTJ just because of the PT. In fact, I'm a fan of the prequels. A big huge fan. I enjoyed them despite some misgivings here and there.
And you know it's because I'm an adult that I see things I didn't see as a kid. And I see them in both trilogies and I'm glad I'm the type of fan that can enjoy them all. It's not the films that tarnished my experience, it's growing up that did.