American Flag Deli & Grocery is a true neighborhood deli known for its fantastic and delicious food. The hero sandwiches are a highlight, described as packed with flavor, very filling, and fairly priced. They are not dry, with all ingredients coming together perfectly. The deli offers many options, serving anything from breakfast to dinner, including halal and Zabiha halal choices. The chopped cheese is noted as above average. The owner receives consistent praise for being kind, welcoming, and providing great customer service, with attention to detail. The service level is considered unmatched by other delis. However, some customers wish for more clarity regarding the schedule and opening times. Overall, it is highly recommended as the best halal deli in New York, worth a special trip for its fresh, satisfying, and great-value food.