Sure, there are a few cliched elements (false/mistaken identity, long-lost progeny of ruler-person swept up into adventures, powerful beloved ruler-person weighed down by responsibilities/dark secrets/unrequited love), but I didn't mind them because they were executed in such unique and fresh ways, which kept things interesting and (mostly) unpredictable. The powerful, beloved ruler ("The Prism") has a sweet relationship with his mother. His long-lost-suddenly-resurfaced bastard (Kip) is a sassy, chubby, uncoordinated 15-year-old who is too smart for his own good but has a heart of gold. The ex-fiance the Prism carries a torch for is a hot shit, tough-as-nails soldier & one of his personal bodyguards.
Start to finish, I couldn't wait to find out what happened next. Sequel time!