My company processes around EUR 600-850k a year solely via credit card. It's our third largest payment method, after SEPA (wire transfer within Europe) and direct debit. We use Santander's platform to process credit card payments and pay just under 0.7%. So "yes", you can get better rates, but these numbers come with strings attached such as having the payroll account with them, paying a big bunch of suppliers via them, etc. Nonetheless, the numbers work great for us.
