Disadvantages: First of all, there are the fees. For example, when transferring funds from a Yandex wallet to a MasterCard and back, even though 1 ruble has the same value in both cases, you will receive slightly less than 1 ruble. The difference is small, but it still exists. It's also worth noting that when transferring small amounts directly, the fee will be higher, and the rates at other exchanges are not significantly better. The second disadvantage is the limited number of exchange pairs: only a few payment systems are represented here. On the positive side, the service offers quick processing and transfer. All operations (from the available ones) can be performed on the website without leaving the checkout. The service functions without freezes or delays. I especially like that you can convert cryptocurrency at a favorable rate here. This is mainly why I use this service. I don't consider the mentioned disadvantages to be serious, as they are typical for all exchanges.