Could you explain a bit further what you mean that Braintree is “Processor specific”?

Braintree claims to be able to work with anyone that can work through “TSYS” or “Nashville”. Is this a small group of merchant accounts that meet these criteria?

Any other general thoughts on Braintree? They seem to have a great setup for a small merchant such as ours who wants to avoid much of the hassle of PCI compliance.

Thanks!