I paid attention to the availability of popular methods of depositing and withdrawing funds. These should be fast and secure methods, such as cards, e-wallets or cryptocurrency. No less important is the availability of bonuses - a good welcome bonus or promotions can improve the starting balance. In addition, I studied how customer support works. A reliable casino should provide round-the-clock assistance and quickly resolve issues, especially those related to transactions. And, of course, the interface and ease of use. The application or site should be intuitive and stable, especially when playing Aviator, where reaction speed is important.