Online food delivery services have seen a surge in interest in recent years. Although these service providers claim significant benefits for restaurants, the actual impact of joining a delivery service on the restaurant's financial performance has been understudied. In this paper, we gathered financial data of 49 Belgian restaurants that joined Deliveroo between 2010 and 2018. We compared the financial performance before and after joining based on profitability, solvency, and liquidity. The results indicate a significant performance increase for restaurants joining Deliveroo regarding liquidity. The benefits are less outspoken for profitability and solvency.