Encik Tan at NTU has received predominantly negative reviews due to small portions, watered-down dishes, and rude service. Several customers express disappointment with the quality and size of their orders, citing small chicken cuts and insufficient curry gravy, often feeling ripped off by additional charges. Service complaints include unprofessional staff and disorganized queue management. A few reviews mention the restaurant's cleanliness and atmosphere as acceptable, and some patrons still find the food reasonably priced despite the issues. Overall, customer experiences highlight inconsistent quality and service, leading to dissatisfaction and declining reputation.