I'll keep this simple and spoiler-free:
I loved this anime. I was reluctant to watch it because I didn't know how I'd feel about some of the characters, but they were all great. Pretty much, if you like moe, you will like this.
Pros:
-Hilarious. I laughed out loud, like hard, at least once every episode.
-The girls are super cute and very love-able. Mafuyu is best girl. The service dudes are hilarious.
-Not much of a story, but each ep is it's own tale. Pro tip: beach ep is #6.
-Sound is great, there's a reason the OP is a meme but it's catchy as hell. ED is meh but make sure to stay for the post-credits scenes.
Cons:
-Art is fine but unremarkable.
-As mentioned, no story, but that's probably not what you're here for.
-Ending was fine but a little disappointing. None of these are really cons, they're just not as great as the aspects mentioned above.
Stats - Story: 7 // Art: 8 // Sound: 10 // Characters: 10 // Enjoyment: infinity, I mean 10. Overall: 9. I don't rewatch many series, but I know I'll come back to this one soon.