Tendon Kohaku in Suntec City consistently receives praise for its crispy, fresh tempura and generous portions, making it a popular destination despite long queues and occasional service issues. Customers appreciate the authentic flavors, quality ingredients, and reasonable prices, often mentioning its status as one of the best tendon options in Singapore. However, frequent complaints about slow, unfriendly service and long wait times during peak hours are common. Overall, the restaurant offers a satisfying Japanese tempura experience, but potential diners should prepare for queues and variable service quality.