AES 831 has been released. It is functionally similar to PDC 2.31.
PDC service will always be "the better option" as by nature the service gives you :
Better features. We enhance the PDC service weekly. We plan for AES get new features annually.
Better support. At our discretion, PDC team, GCS and Pega Consulting can collaborate with you to help advise on issues and to troubleshoot any issues using the PDC service itself. Vastly superior to support ticket, screen shares, sending logs, etc
Better price/TCO. PDC service is FREE. Even if AES is licensed, you must provide stack (hardware, software license, data center charges) and staff (install, monitor and administer AES application) to run it.