Without a doubt, crypto transfer from my cold wallet to account with this company is the most convenient.
I keep my money in cold crypto wallet. And if I need to open some kind of order on any of crypto platforms, I transfer certain amount from my wallet to account with some company.
I trust blockchain technologies that ensure speed and reliability of crypto transfers. And I also like that no one but me can track my transfers. This indicates highest level of security for crypto transfers.
And my cold wallet creates conditions under which only I have access to my money in the account.