Right, so if you're in that position, why would you put up with the onerous application process for a service like Braintree if you have a simpler alternative like Stripe available and it provides the functionality you need? You want a payment service that takes as little time as possible to set up and then just works, because you have a million more important things to be doing. Any advantages Braintree might have had if their pricing did work out more favourable than Stripe's flat rates is instantly lost because they can't give straight answers to too many basic questions (like "What does it cost me to collect a payment?") and their API and documentation are significantly more complicated.