The series is incredibly underrated. I think it's a fantastic scifi genre mix with excellent animation and the best anime fight I've ever seen after 20 years of anime that I've already gotten over. Season 3 of Horizon is in my first place in the series, which I expect hot-blooded.
i watched this way back when crunchyroll was free! Now it's still searchable but crunchyroll does not have the episodes anymore :((((( I don't know if there will ever be a season 3 but I love season 1 and 2 and must have watched them close to 4-5 times each