Quick preface - I was lucky enough to get an advanced copy of this, and while I wasn't sure I'd be the target audience, I enjoyed it. I also haven't read "Sparks" yet, which could have been a disaster, but thankfully, this book stands well on its own.
So, as someone who hasn't read the first book: "Program 38 - Truths" was a thoroughly enjoyable read. I was drawn into the world and the compelling story of Kelsey Clay, and even without having the full backstory, I was able to follow along and connect with the characters. The world is built so well, that you don't need to have the primers from the first novel - but if it's anything like this one, go and read that too.
It's a unique take on superheroes, and I genuinely cared about the characters as they twist and turn through what is not a happy story, but it is a realistic, human experience - and I think that's the hook here. Yes, it's a superhero story, but it's also a human story, and a coming-of-age story, with all the pitfalls and trials that come with just living your life, magnified by the responsibilities of heroes.
One thing that does stand out, and it comes from the book and the engagement on social media and in signings - this is a writer who is passionate about her work. And she should be proud of what she's made.
If you like coming of age stories, YA fiction, or superhero stories in general, give this a go. If you're on the fence, I encourage you to fall over the side of buying it, and giving it a chance.