First off, many thanks to NetGalley for letting me read this book as an audio ARC! I greatly appreciate it!
It was all right. It was fine. 
Man, though, Noni is one of the most obnoxious characters I've ever read. Listen to your mother, girl! Jeez! She's doing what she thinks is best for you! I get that a character needs negative traits to overcome for a proper character arc, but being this much of a spoiled brat is going a little overboard. 
Radiance isn't much better, but at least she's trying. 
Points also go to the narrator and her accents, which I greatly appreciate.
The writing's quite good, and the plot is interesting, and I liked a lot of the background characters, but Noni's constant complaining ruins it. 
Three out of five stars for Tangleroot.