Overall, Café Oui, mais non is described as a charming, cozy café with a bohemian vibe that feels welcoming for studying, working, or casual chats. Reviewers note a diverse beverage lineup including chai lattes, lattes, and other creative drinks, plus tasty snacks and vegetarian options like vegan dips and wraps, while the décor is eclectic and the space offers big tables and intimate nooks with a small outdoor terrace in warm weather. The atmosphere is praised as friendly and relaxed, with strengths such as free wifi, practical hours, and a layout that accommodates both solo visitors and groups. Some concerns appear, including occasional pricey items, inattentive service, and noise in the basement area, as well as a cigarette scent in certain spots; still, many call it a local favorite with a warm, welcoming vibe. Overall, the place is seen as ideal for studying, meetings, or a laid back hangout, offering strong drinks, comforting bites, and quirky decoration, though space can feel tight during peak times.View restaurant profile