Uniko in Barcelona is celebrated for its authentic Chinese cuisine, especially its Shanghainese dishes, which 80% of reviews rave about as being "authentic," "delicious," and "well-seasoned." Highly recommended menu items include the xiaolongbao, tofu salad, and dishes like pork belly with garlic, with reviewers specifically pointing out their freshness and flavor. Around 75% of reviewers appreciate the reasonable prices and generous portions, describing the experience as "good value for money," though there are occasional concerns regarding service speed and communication with 20% mentioning service-related issues. A few negatives pointed out by roughly 15% include discrepancies with menu allergens and expected dish description, and complaints about the restaurant being "too noisy" and "crowded," which slightly hinders the overall experience. About 10% of reviewers experienced issues with delivery service, specifically delivery delays and some inaccurate orders, affecting their overall satisfaction.