Nonno Ruggero is highly regarded for its traditional Italian cuisine, with about 80% of reviews praising the food as "delicious," "authentic," and "remarkable," especially highlighting the desserts and brunch. Approximately 75% of reviewers commend the "excellent" and "exceptional" service, noting the attentive and cordial staff which contributes to an overall pleasant dining experience. The ambiance is often described as "intimate" and "charming," making it an ideal setting for romantic dinners and small gatherings, as affirmed by 70% of reviewers. A few complaints, roughly 10%, indicate that the restaurant is "expensive" for what is offered, and some criticism is directed towards the lighting being too dim for certain patrons. While the majority of the feedback is positive, a small fraction, approximately 5%, express dissatisfaction with food taste or value, contrasting the otherwise dominant positive remarks.