However, one tiny nitpick: The Stripe brand is not equivalent to paypal and other common payment options, it doesn't yet mean anything to most people. The button saying "Pay with Stripe" might confuse people or not convert optimally, perhaps let the text be customized?
Yes, I absolutely agree. We're redesigning that part of the button, and allowing people to specify various options, such as 'Pay', 'Add Card', 'Checkout' etc.
When it comes to payment-related code, I wouldn't even consider it an option for my shop w/o reviewing it. Was that by design or will it be minified in the future?
Who knows what usage people might dream up, what wording works best for their unique case, or hell, different languages. In my humble opinion, everything about the button should be overridable.
Stripe Team: Well done otherwise. Love it.
This will probably confuse consumers until Stripe has the brand awareness of Paypal.
I think they need to start with something like 'Pay with Credit Card <br/><small>powered by Stripe</small>', and as their brand grows switch the emphasis to their brand and away from the word Credit Card.
A co-branded button might be a feature in the future, but that effort was a swing and a miss.