Good, interesting characters - Yumi, Chika, Sana, early Makoto, Rin, Maya
Like them but kinda pointless, low content/doesn't go anywhere - Miku, Molly, Uta, Touka
Dull - Ayane, Futaba, Io, Kirin
Gag side character - Tsuneyo
The game is too long to still be in the "introduce characters and their issues that might become interesting one day" stage but here we are. It's an unwieldy cast list that makes searching for events tiresome, and leaves many girls underdeveloped (not that way) and/or disconnected from anything meaningful that may be perceived as happening. The MC's sadsack, self-indulgent whinging about how he doesn't care to get involved and can't love or smile or whatever starts to get annoying. Maya is justified in being so tired.
When it's good it's very good, and hopefully one day it'll be great. But as many TV shows in the past have shown, it's a lot easier to create the illusion of something great about to happen than to actually answer the questions and satisfy audiences. Teasing conflicts and issues is one thing, letting them play out another. Maybe the next dorm war will be a three-way contest with another wacky-but-shallow troupe of teenage girls?