As a reading experience, good. On tv, bad ... because it’s another reason for children not to pick up a book.
I like the concept, though. One of our family pastimes is alternate histories. What if “this” went differently? Then what? It makes everyone think.
You mean life Jane Curtin?
There is actually a history book about 5 or so different events where had the outcome been different, how would the world today would be different. I bought it as a gift for a history teacher I once worked with and he thoroughly enjoyed it and actually used it with his classes.