I moved to another country and I use it to send money back to my family in my home country.

It's by far the cheapest and fastest option. It takes less than 30min to transfer between my bank accounts.

It works something like this Deposit->send from and to an exchange - > convert to local currency - > withdraw into bank account

The total cost ends up being about 1.5% including the exchange rate. With my normal bank it takes up to a week and the total cost ends up being about 4~6% Even if I was converting currency at an airport the exchange rate tends to be worse than 1.5%