Reviews broadly praise Yu Yu Suan Cai Yu in Tanglin Mall for bold, flavorful sour-spicy fish soup and tender fish slices, with many noting generous portions and a comforting broth. Service is repeatedly highlighted as friendly and attentive, especially staff member Christina Lee, though some reviews condemn high prices, occasional mischarges, or slower service during busy times. Overall sentiment is favorable, with diners returning for the authentic flavors and reliable comfort food, and praising free-flow sides and approachable spice levels.