The False Prince is an action filled narrative. In every chapter Sage is getting into trouble, and also getting out of trouble, or going on some dangerous adventure. This book is never sluggish. After a few chapters, you discover that you understand the characters well. Not because you've been told that their personality is this that or the other, but because you've been shown in the narrative. Ms Nielsen actually achieves this goal without a show and tell, which so few authors seem to do today.
Our main protagonist Sage is self-confident. Or where he's not, he easily fakes it. He is not a person to be big-headed, conceited, irresponsible, or patronizing. He has a strong underpinning of decorum. He is an exceptional judge of character - sensing who is fundamentally good or bad. He does not suffer fools easily. Sage is a candidate prince alongside Roden and Tobias. The dynamic between them is fascinating. When they need to be they are comrades in arms, united against the same "enemy." However, they are also rivals - in a game where the stakes are as high as they get. All three need and want to win. In their own way, each works to undermine the other two. The three act as a team sometimes, while two gain up against one at others. Each was capable of desperate cruelty.
This book has universal appeal. This does not contain any swear words or romance, it doesn't feel juvenile. It does have a surprisingly amount of violence and cruelty, although I believe it is appropriate given the plot, and is never graphic.
My only slight critique is that late in to the book there is a shift in the narrative from first person to third person, which I found disconcerting. In summation then Prince stands out for its fabulous dialogue, enchanting protagonist, and well developed plot.