The thing to realize here is that most of these payment processors have the same functionality. The key difference most of the time is the Documentation/Spec an

The thing to realize here is that most of these payment processors have the same functionality. The key difference most of the time is the Documentation/Spec and the support provided by the processor. I have been working on a Braintree solution for my place of employment and going from Authorize.net/First Data to Braintree was a pleasure! All support queries I've made to them have been answered in couple of hours. This to me makes the biggest difference.