This is pretty decent stuff for someone who is not averse to shows that give shoutouts to other shows and popular culture as their main gimmick. In this case it's references to mecha, idols, otaku related things etc. The plot is rather silly (Akihabara as the last standing citadel of otaku culture that is being suppressed) but that is to be expected from shows like this one. Lots of robot fights, lighthearted comedy, "dorky" characters, and other silliness. The OP is a real earworm, the visuals are pleasant to the eye, voice acting is solid. Overall if you are a mecha fan, this is a decent choice if you want an upbeat comedy series that uses references to classical tropes as it's main driving force.