Well, it depends on personal interests. For those who like stories with a touch of both the good (splendid) and the bad (vile), it can be a very good read. It could potentially cover a wide range of themes and emotions, which makes it appealing for a diverse audience whether it's a work of fiction exploring human nature or non - fiction documenting real events and characters.
We might expect a contrast. If it's fiction, perhaps there will be a battle between good and evil characters. If non - fiction, it could be about different aspects of society, one splendid and the other vile.
It's fiction. The story and characters in 'The Splendid and the Vile' are invented to entertain and engage the readers rather than being based on real-life happenings.
Sure is. The story takes place within a specific historical context and explores the impact of those times on the characters and their lives, which classifies it as historical fiction.