I´m gonna be honest, I started to read it because of Sailor Moon and the art style. But the manga doesn't hold itself together. I can't even consider it "slice of life" per se. The MC is a scientist that builds a robot and pretty much, the next is just overly generic silly romance stuff. I couldn't say that I enjoyed it much, I dropped it after the 3rd chapter. It was not funny either, the drawing is cute and doesn't take itself seriously anyway. I give it a 5 overall for a generic romance comedy about a Mecha girl, nothing else.