HolidayTaxis.com is generally considered legit based on customer reviews. The company has a 4.2-star rating on Trustpilot with over 54,000 reviews. Many customers have praised the professionalism and punctuality of the drivers, as well as the quality of service provided. However, there are also some negative reviews mentioning issues such as delays, unhelpful drivers, and poor communication. Overall, the majority of reviews are positive, indicating that HolidayTaxis.com is a reliable service for airport transfers.