Oh how I wish Gravity forms had a generic "Payment" addon instead of a Paypal addon.
Braintree is one of the only solutions out there that wraps up a merchant account and gateway together. It's use by the best in the industry and is a viable option for business that knows how to install a proper SSL certificate. Braintree used by the best in the industry like 37 Signals and Github. Please make this a priority gateway if it isn't already. Paypal is becoming unusable as they seek to put their own interests above service providers. Thank you.