Our current integration with PayPal has some problems, mostly because it's aging and PayPal has moved on to newer things. The biggest issue at the moment is that the old version doesn't support Japan, but likely over time we will lose other countries/features if we don't upgrade.
Express Checkout main advantages
- Accept donation payments from Japan
- Real time analytics to see that a payment is completing or failing.
- Smart widgets and improved interface
- Improve security with our connectivity (less fraud attacks)
Link for Express Checkout integration
Part of the evaluation process needs to include a quick survey of PayPal's recent maintenance notifications. Anecdotally, the EC method relies on their APIs and those seem to be down a lot.