It's been a while since I've read a book in this style and I really enjoyed it. You're not just reading about the main person (Hero), You are seeing and 'feeling' it from their perspective. The main character comes through as human, jacked up and doing the hero thing, but still human in point of view.
Overall the author has a strong imagination and knows how to structure a good plot. The dozens of illustration and animations video on youtube really helped to tell the story. I'm definitively purchasing books 2 and 3, i think it would be worth it.