These are cute shorts that were released after each episode premiered in Japan. Though they may provide a bit of information they mainly just make fun of the show and it's characters. As for the comedy they're usually hit or miss, but since they're a bit under 2 minutes it's not a huge waste of time if you don't think the joke's funny. The Chibi art style is pretty simple and can easily be compared to the anime Wooser's Hand to Mouth Life. If you haven't seen Gargantia then I'd recommend watching these the way they were intended (episode 1, special 1, episode2, special 2, etc.) It's a cute and fun touch to the original series.