It's a traditional fantasy filled with familiar settings and character types, but there's nothing wrong with a comfort read (defined as a story where you have a good idea what's going to happen, and there's nothing bad lurking in the wings). It has dragons and swordplay and a hero from the back of beyond who has to save the world. Even though the characters are familiar, they are fully drawn and interesting to read about.
''Eon'' is the first book in a duology (according to the author) and, as such, it definitely cries out for a sequel. This makes the ending a little unsatisfying, but overall, I enjoyed this book.