The story of the show is.. fine, nothing spectacular but decent for the show's grade. There's only so much you can do in a 13-episode fantasy Isekai action series, and the series doesn't try to overstep its bounds. The show follows a pretty steady sequence of action followed by exposition and/or the development of new robot stuff, followed by action again. The art is actually decent, though there's a few scenes that obviously had much more love put into them than others. Voice acting is fine and the character design is pretty good, though a lot of characters' motives feel like they're introduced just to be tossed aside in the next episode (again, not much you can really do with what the show is). MC is a bit bland and doesn't have any character besides 'I love robots' and having innate reincarnation MC genius, but the supporting cast carry the show.
Regardless, I think it's a fine show. Definitely enjoyable for existing viewers of the mecha genre, though I don't think I'd go out of my way to watch this one otherwise.
