Take credit card processor reviews with a (big) grain of salt.

Many credit card processor reviews are created by people or businesses that are affiliated with the processor(s) they are reviewing. These affiliates write glowing reviews to get you to sign up with a processor they work with, and then the processor pays the reviewer a commission. The best and most useful reviews are from sources that verify reviewers.

The Better Business Bureau is a great resource that verifies claims and complaints submitted about individual processors. The reviews at CardFellow.com are also from verified businesses. They don’t allow a business to post a review of a processor until the business has accepted a processor’s quote through their marketplace, and the processor has confirmed the business is using its service.