Longo Seafood Restaurant is widely praised for its high-quality and varied dim sum, with around 70% of reviewers highlighting standout items like Shu Mai, Ha Gow, and unique offerings such as Baked Almond Tea and black truffle siu mai; most call the dishes "delicious," "authentic," and "well-portioned." About 60% commend the friendly and efficient service, especially managers and certain waitstaff, but roughly 25% note issues with slow service during peak times or banquets, inattentiveness, or language barriers. Ambiance is frequently described as elegant, spacious, and clean, suitable for both family gatherings and banquets, though the main dining room can be noisy and parking is considered difficult by approximately 20%. Negative experiences (about 20% of reviews) include strong complaints regarding upcharging, suspected dishonesty with seafood weights, hidden fees (automatic tea and gratuity), poor service in private rooms, food safety incidents (like glass in a dish), and occasional quality inconsistencies at dinner or banquets. Most believe the food is worth the price due to freshness and taste, but caution is advised with certain seafood promotions and billing practices.