The merchant payment provider market is complicated, filled with an ever-evolving mix of old and new technologies, strict regulations, and a revolving door of new mandates, players, and operating models. To keep up with this dynamic environment, merchants rely on their payment providers to stay ahead of the pace of change. In our recent evaluation of 11 top merchant payment provider vendors, we spoke with 23 customer references (i.e., merchants like retailers and brands) about their experiences with their current payment provider. This report highlights what matters most to merchant payment provider customers.