I used to be an English prof teaching lit and creative writing, and I appreciate both "high" and well-written popular fiction. This novel series really impressed me. It's an extremely gripping read from the first pages, and works for young adult on up, with enough meat to the plot and characters to keep readers of various ages satisfied. It's set in a near future after something strange and terrible has happened, but it avoids the grim nihilism of so many dystopian novels. There is real evil but there is also hope and light through the darkness.
It also has many of the elements people expect from a "good read" in this genre -- action, romance, love triangles, mystery, and solid world-building. It's all handled in a fresh way that develops very organically.
The author's writing style is very easy on the ears, written with a sense of what the story would sound like if read aloud around the fire. The main character, beautiful seventeen-year-old Red, is a young woman you can root for but who also has some growing up to do.
The science fiction elements are in the service of fascinating character exploration and psychology. They don't overwhelm the characters and their story. One doesn't even have to like typical science fiction to love this series. It'd probably be better to call it a novel series of the fantastic, though the author is careful to make the futuristic, world-building elements fully plausible.
If you read the first few pages, and certainly the first three chapters, you'll likely be hooked and won't need any positive review to push you forward, other than maybe the reassurance that the rest of the series develops beautifully, offers a satisfying series of plot twists and new characters along the way, and concludes with a great ending. I highly recommend.