"Anime World Order also gave the series a positive review, noting that it has become one of the most popular mecha anime on the Internet, which reviewer Clarissa Graffeo ascribes to its crossover appeal among various audiences who do not usually watch giant robot anime, by combining aspects from a number of different anime genres, including elements of the Super Robot, Real Robot, Shōnen, Shōjo, Seinen and Josei genres.THEM Anime Reviews gave the anime a score of 4 out of 5 stars, with reviewer Tim Jones describing it as "Almost five-star material," and stating that it is "chuck full of action, comedy, drama, adventure, and sci-fi elements, managing to even entertain a person who couldn't care less about mecha in the process."