The reason I didn't rate this show with 1 is the core theme it touches very lightly: The acceptance of things we perceive as different. It's already teased in episode 1 (but turned to laughs immediately after). In a world where monster-girl hybrids are an everyday occurence, people react with contempt and try to avoid them. What has caused a negative experience for some girls like Rachnera (and influenced their way of living) is the main message this show tries to get across (and ultimately fails, but I give points for trying): Not to judge people by their looks. The main character does exactly this and behaves indifferently to humans as well as the monster girls, showing that looks and heritage don't matter.
But, in a show called "Daily Life with Monster Girl" you would expect the main character Kurusu to have some kind of "life". As it turns out he doesn't. He is at best shown buying groceries or cooking. Apparently he doesn't have a job or hobbies or friends either. And he doesn't have any personality traits besides being nice - which is, of course, the biggest asset any harem protagonist can have as it makes tons of girls fall in love with you.
Things aren't much different for the girls. They don't have anything going for them besides obviously wanting to fuck Kurusu. Their sole purpose is reminding us how nice Kurusu is and how much they depend on him and love him. I could describe every girl with a single word: Miia is jealous, Centorea is uptight, Papi is retarded, Mero is caring ... The one girl that actually has some background and personality would be Rachnera, however that amount is kept to a minimum as to not distract the viewer from the main point of this show.
The main selling point of this show would be ecchi. However, the fanservice in this show is highly unsatisfying. The biggest problem is the girl's over-the-top character designs: Their human female body parts are way too exaggerated. Every girl except Papi has huge or gigantic breasts to the point that they mostly look unhealthy and entirely unaesthetic. This is not how I would want my girlfriend to look like. Fanservice is also way too straightforward: If breasts or asses are shown then they are immediately stripped naked. There is no teasing - breasts and asses are directly zoomed on by camera the moment they are there. And it's like that in every episode multiple times. After about 3 episodes it became painful to watch this show as I didn't see any merit in watching Kurusu get smothered by some monster girl's overly large breasts again and again.
The comedy in this show is extremely repetitive and mostly focuses on ecchi. Either Kurusu trips and lands or some girl's breasts or Miia gets jealous and presses his head against her breasts. It's like that every time: Some monster girl gets close to Kurusu -> the others get jealous and then we get to see some breasts or asses. What the fuck?
I'm not sure what the purpose of Monster Musume is. It's just some wish fulfillment for anyone who has a fetish for monster girls. But as far as the sexual content in this show goes, I would advise anyone to just go watch some monster hentai instead (there are tons out there - that genre is quite popular).
