Yes The Iliad is considered to be one of the great literary works of all time and rightly so.
As I said there's a mysterious quality to this story because of the direct involvement of the mythological gods and goddesses in the deadly Trojan War.
I haven't read The Odyssey yet but I saw a TV show about it.
I should read The Odyssey soon.
Zeus and those others are very real. Have no doubt about that.