I can't say much that won't spoil the first book, but I loved this book more than the first, and the first is literally one of my favourite books. 
The biggest development of this is in Son of a Trickster, Jared is so deeply loyal to his friends and family, to the point where he puts himself in harms way for them. He is constantly trying to help the people around him. But in this book he finds himself in a situation where people are constantly trying to help him, and he has to weigh whether or not they're doing it with no strings attached or because they want something from him. He's okay with be loyal to others, but has a hard time accepting loyalty himself (because it has and may bite him in the ass). 
I'm actually pretty glad I waited to read this until now because I'm dying to read the last and it comes out soon!