I waited until I read Vol 8 to review this series because I felt like it should be considered as one large work instead of volume by volume.
I LOVE this series. It's wonderful. Mystery, action, the ever-present question of how far AI can evolve... I got very attached to the robot characters and found the multiple deaths saddening, but I think that just means the authors did their job.
This series was my introduction to Astroboy. I knew the history of the anime and manga, but had never seen or read them. I did watch a little of the anime after I read Vol 1 of Pluto, and I think some familiarity with the original helps, but isn't truly necessary. This series can stand on its own feet.
Recommend to: Age 14+, graphic novel/manga fans