I think it was well done. It's obvious that the major characters are all based on her childhood because they're all there - Dill, Jem, Cal, some of her other friends - but grown up from "To Kill A Mockingbird". So the parallels are there. The style is very similar. Some of the passages in "Go Set A Watchman" are the same, word for word, in "To Kill A Mockingbird". But I think the one thing that placed "To Kill A Mockingbird" way above "Go Set A Watchman" was the fact that her editor at Lippencott, Tay Hohoff, was far better than whoever edited this. From biographies of Harper Lee that I've read, Hohoff and she worked together like sisters and became lifelong friends. The work they did together made "To Kill A Mockingbird" the exceptional story it was. Had Harper and Hohoff had a chance to then smooth out "Go Set A Watchman" fifty years ago I think it would have been a much better book.
Sounds like, overall, it was a good book. What is the major / plot theme?...........