Fumino doesn't bother me currently perhaps exactly because she's so 100% textbook tsundere that it's rare indeed. Normally tsunderes have some sort of other personality quirks that make them if not more probable but more characteristic. Fumino, however, is like the basic description of a tsundere without any personalization. It's not like I'd have generally anything against tsunderes but I dislike the extreme cases.

Otome's total incompetency surprised me but Nozomi's personality was a good. She's quite serious but under the surface you could see her also teasing Takumi on purpose.