The reviews depict Cafe O as a cozy, well-decorated eatery in Singapore's airport, renowned for its diverse local and Western cuisine, including nasi lemak, prata, laksa, and chicken biryani. Patrons generally appreciate the friendly service, authentic flavors, and reasonable prices, with many praising their signature dishes like prata and ginger fried chicken. However, some criticism arises regarding inconsistent food quality, slow service during peak hours, unclean tables, and occasionally rude staff. Despite these issues, the overall impression remains positive, emphasizing the cafe's appeal as a comfortable spot to enjoy local dishes before flights.