- Awesome Music: "Genesis", the opening theme of the series.
- Base-Breaking Character: Kyoma was one of the most divisive anime protagonists of the Winter 2016 season. Some loved him for being a badass, the fact that he was an adult male protagonist that played by his own rules, and his tragic backstory involving his deceased wife. Others found him to be a boring character with hardly any personality and weren't fond of his harsh treatment towards Mira.
- Broken Base: The series airing on Toonami has been met with split reactions. Some were thrilled about it airing on Toonami since like Space Dandy, its airing on Toonami as it aired in Japan meant that many people would be able to see it for the first time. It's also considered to be a good show for the block since Toonami hadn't aired a science fiction show in a while and it's the closest they'll ever get to airing Psycho-Pass.note There's also the fact that it replaced the controversial Akame ga Kill!; many were relieved that a potentially better show replaced it. Others, however, weren't too excited about it as they'd immediately written off the show as being uninteresting. There's also the fact that it only has 12 episodes, with virtually every other Toonami show has over 20 episodes with the only exceptions being Deadman Wonderland and a pair of OVA series. Finally, the series is a heavily Compressed Adaptation. Not helping matters is that it was one of the most anticipated shows of the Winter 2016 anime season and FUNimation hyped it due to their position on the production committee.
- Ending Fatigue: The final arc of the anime is five episodes long in comparison to the previous arcs which lasted about two to three episodes. It doesn't help that the final arc mostly focused on new characters that ended up being largely unimportant.
- Ensemble Dark Horse: His tragic backstory, cool design and awesome fight scenes made Loser an instant fan favorite, despite being a supporting character. Likewise, his daughter is also well-liked for her intelligence and costumes.
- Funny Moments: In episode 8, when Mira and Kyoma are moving rocks off the road, Mira throws several rapidly while Kyoma struggles with one.
- Ho Yay: One of the first things Albert says in regards to Kyoma is that the latter will one day be his. While it was a cover, one also can't help but find some subtext in the fact that Albert apparently diverted his vacation to be with Kyoma during the events of episode 4.
- Memetic Badass: Kyoma is Japanese Knife-Throwing Batman.
- Moe: Robot Girl Mira became the most popular character in the series due to her sheer adorableness.
- Narm Charm: Despite being an Out-of-Character Moment, Kyoma's dance is considered to be one of the best aspects of the opening, so much so that Mira has her own version of it in the OVA.
- The Scrappy:
- Salva and the residents of Islero for being a Spotlight-Stealing Squad during their introduction episodes, poor voice acting (at least in the dub), and the fact that the only purpose they had in the story was sending the characters to Easter Island.
- Haruka Seameyer, the main antagonist of the final arc, who many saw as a very clichéd, phoned-in last second villain with an ugly character design. Yuuki Kaji's performance as him was also widely criticized for being very annoying.
- They Wasted a Perfectly Good Character: In a surprisingly unique version of this, both Kyoma and Mira fall victim to this due to a lack of character development. In the opening episodes, Kyoma showed potential for a backstory about his hatred of coils to be explored and while he does get a backstory episode, he never grows as a character other than calling Mira by her real name in the end. Mira, on the other hand, had an entire episode dedicated to her struggles in regards to being a robot and living up to her creator's expectations but none of that is ever explored afterwards, with Mira mostly being kidnapped or the victim of Kyoma's abuse. Similarly, Albert, despite being Kyoma's closest partner and having a significant role in all the arcs, never gets any development and we know as much about him in the end as we did in the beginning.
- They Wasted a Perfectly Good Plot:
- It's been established that Loser and his daughter do a lot of dangerous things and go to dangerous places in order to get Numbers. This is only barely touched upon, despite how interesting these missions seem.
- The Numbers. Instead of hunting the Numbers and seeing how they impact the world, they're mostly unimportant until the final episodes. Even then, the fact that there are hundreds of them is rendered moot, since Loser only needed five.
- In the last few minutes of the anime, Mira's power coil gets replaced with a new, green one after her old one went haywire, accompanied by a vision/apparition of her father congratulating her for completing her mission...but although a few characters are visibly surprised by the new coil, no one even mentions it or tries to determine what it is. This is despite the fact that since the people nearby are almost all high-profile Collectors, they should be interested in or wary of such things. She actually tried to explain the Out-of-Clothes Experience she just had to Kyoma, but he shut her up immediately like he normally does.
YMMV / Dimension W