""Comic Book Resources" calls it a "magnum opus" and ranked it the sixth best mecha anime ever.Guillermo Kurten of "Comic Book Resources" called it one of the "modern classics" of anime, praising the art style and animation, the action, the mechs, the cast of characters and their emotional relationships, the world-building with gradually rising stakes, the "over-the-top and light-hearted" tone, and for dealing with real-world issues.