Around 85% of reviews strongly praise Osteria Scalin for its outstanding seafood, described as "fresh," "delicious," "authentic," and highlights include the swordfish carbonara, mixed fried seafood, and innovative specials like anchovy and burrata pizza. Service is widely commended as friendly, knowledgeable, and attentive, with several guests noting staff like Nicolo and the owner, as well as the warm and local vibe; phrases such as "amazing service" and "super friendly" recur throughout. Atmosphere is referred to as relaxed, cozy, and "off the tourist path," with multiple mentions of comfortable seating, space between tables, and an authentic local clientele. About 15% mention issues: prices are seen as a little high for an "osteria," some found dishes (like pastas or certain seafood) oversalted or underseasoned, one reviewer reported a disappointing tiramisu, and a few cite minor language barriers with staff.