How did you decide which payment processing solution to use on your website?

If you want to choose a right payment gateway, you should consider the following:

Targeting audience. Identifying a target market helps your company develop effective marketing communication strategies.
Various payment providers suggest different payment methods and it is important to choose the best one for your demands.
Fees. Typically, payment providers charge money for each transaction but also, some of them have hidden fees, so be careful.
Find out whether your payment provider accepts recurring payments or subscription payment model or not.
Reliable payment providers must be compliant with PCI DSS certification - data security standard.
Availability of support.
I work at Acardpay - international payment providing company. We offer solutions for merchants across all business verticals, specialized more towards High-Risk business.

Our Advantages:

Integration with all major shopping platforms
Operate in 130+ countries.
24/7 support
Only transaction fees(starts from 1.2%). No hidden fees. Free set-up.
Mobile payments.
Recurring payments.
Credit and debit card processing.
Compliant with PCI DSS level 1 certification - the highest level of data protection.