These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Arc Fatigue: For Episodes 8,9, and 10,the Psycho Lesbian antics of Shiraumi(who doesn't contribute to the plot in any real manner, not even by fighting) and the twins Kyo & Kyo Sawagi, who decide to fart around with getting Sen's attention due to the long haired twin's crush on her.
Crazy Awesome: The Kyo sisters fight with shopping baskets and it's used as a weapon
The plot in general, treating shopping like a Shōnen battle
Cult Classic: By no means as mainstream as most anime, it has great animation and a great concept of Shonenizing an everyday occurrence like shopping in a grocery store
Ditto for episode 9 when Ume practically starts molesting Oshiroi.
The Scrappy: Compared to the other characters, Ume is intensely unpopular among fans of the show.
Draco in Leather Pants: On the other hand, the Yuri Fan adores her because 1) she's quite clearly a lesbian and shows it by unapologetic, non-tsundere kind of jackassery toward male MC, 2) by doing so, make a Take That toward the "bland MC" approach in harem anime, 3) she's an aloof Hime Cut character and her target of affection shares VA withMadoka, resulting in a lot of Squee.
Uncanny Valley: Any time the animators try to draw lips. The operative word here is try. It doesn't help that it's always pretty jarring anyway since the characters normally don't have lips.
Woolseyism: The fansubbers have been doing a very good job with this series as a whole, but then you get lines like this:
Oshiroi: "This is fappable! This is totally fappable! Do want!"