In some ways, it's still very much a Nora Roberts book. The writing is wonderful and beautifully written to express the dangers, fears, and even joys of this new world. There are a few love stories to root for, but overall, I wouldn't call this a romance. Instead, we've been given an origin story for The One and I assume the next book will be centered around this person, years in the future. I would say, for anyone intending to read this, go in with zero expectations.
There are many characters in this one and each plays a role in the journey. I loved the different dynamics between characters, the groups that get formed, and the way they learn to grow and depend on each other. In particular, I really enjoyed Max and Lana, who I would say are the "main characters" in the book. Much of the story centers on their journey and I found them to be really interesting characters.