It is a good movie. Not as good as Star Wars or Empire, but a good movie.
There are some aspects of the film which could have been better though. While Luke Skywalker’s arc is strong and the central part of the picture, Han and Leia have little to do.
Anyway if Lucas was not so quick to finish the Saga i would have preferred to see Luke training as a Jedi, going through some stuff and confronting Vader. And then finding out about his sister and facing the Emperor in the second trilogy.