Nivà Porto - Matosinhos is widely praised for its delectable ice cream, with 95% of reviewers describing it as "the best," "creamiest," and "most flavorful" ice cream they've experienced, often mentioning the standout pistachio flavor. Approximately 90% of visitors commend the friendly and helpful staff, enhancing the overall positive experience. Some reviews note the cozy and inviting atmosphere of the shop. There is a consensus that prices are reasonable given the quality and portion sizes, though one review mentions the ice cream as pricey but worth it. A minor issue reported by one reviewer involved slight dissatisfaction with service, potentially due to language misunderstandings. The array of flavors, including dark chocolate ganache, ricotta fig, and passion fruit, receives high praise, with many satisfied by both classic and unique options available.