This manga is (in my opinion) one of the best.

The drawings are very well done, and the layouts make sense unlike some unnamed manga's that don't see to flow very well. It's also very easy to tell the characters apart, I've never gotten them mixed up.

As for the story, it's very funny, like a comedy should be. Both me and my sister constantly laugh out ,oud while reading it, even when you reread it the jokes still get you. THe characters are fun, believable, and interesting. And who doesn't like the idiotic frog-like invader who constantly plays with his gundams models, the occult-crazy younger brother who befriends the invader, and the devilish older sister who happens to be perfect enough to be amazing but not so perfect that she gets annoying.

I personally think that boys, girls, teens, and adults could all read this and love it. Although I would recommend that the young ones wait a couple of years.