It's less funny than I'd hoped. Ep.1 got my hopes up, but then the rest of the show was a bit heigh-ho.
Ep.1 is an alien invader comedy. Aliens attack the Earth, because they've heard it's one of the easiest planets to invade. (The title means "don't lose, evil army!") Unfortunately it's only a three-strong "army", consisting of Don (a walking potato who loves his family) and his two sidekicks, one of whom is liable to answer his questions with "I'm on my lunch break" or "are we getting paid a bonus for this?"
This is great. Incompetent alien invaders are a laugh. There are some good follow-up jokes in the next couple of episodes, e.g. having to put a sign on their spaceship saying "WE DON'T SELL GOODS" or trying to explain to a cross neighbour that they're alien invaders and so it should be okay for them to park their spaceship there.
Unfortunately what happens next is that the aliens land in Japan, get their spaceship trashed and start having mundane everyday problems. Where can we find an apartment? How can we pay the rent? Where can we find a part-time job that we won't get fired from? This is okay and sort of amusing, but it would be almost the same if they weren't aliens. They could equally have been Americans or something. They visit a convenience store and a shopping district. There's Japanese wordplay. They get a part-time job at a sushi restaurant, because they're aiming for get free food. It's okay. It's fine. There's nothing wrong with it and it's not unfunny or anything. However it's also nothing special and in hindsight I'd now say that, for me, watching this show was a mistake.
There's not much to talk about, really. It's a short-form anime. It has a small cast of idiots who don't understand the world and keep getting in trouble. It's what you think it is.
My favourite thing about this show, actually, is its creator. It's based on a four-panel manga written by a voice actress, Sora Tokui. I couldn't tell you what she sounds like (although I know I've heard her in a bunch of shows), but it pleases me to see this sort of cross-pollination of nerdishness. No one expects voice actors to write manga, but Tokui did and it became an anime! Well done to her. This material might work better in four-panel form, actually.
As an anime, though, it's just not very interesting. It's not bad, but it's nothing special. I liked the material that's built around them being aliens, i.e. the first few episodes and the finale with a space cop/idol. I probably wouldn't bother with this if I were you.