La Nonna di Lucca is well-regarded for its unique and delicious pasta, particularly the spaghetti cooked in a cheese wheel, which around 80% of reviewers highly recommend, describing it as "amazing," "authentic," and a "must-try." Approximately 75% of visitors commend the friendly and attentive service, with some noting exceptional staff members like Barbara and the quality drink presentations, though about 5-10% reported slow service on busy nights. The atmosphere is generally praised, with about 70% of reviews mentioning a cozy and vibrant setting, complemented occasionally by live music, making it a great choice for dates or special occasions. While most diners find the food reasonably priced for the quality and experience, around 15% noted it as expensive, suggesting it might not suit those on a tight budget. Reservations are recommended since the venue attracts crowds, with roughly 15-20% of patrons mentioning long waits for tables, especially during peak times.