Native AWS VPC VPN Support
The UTM supports auto-setup of site-to-site VPNs with AWS using the AWS provided config files, but XG does not. Dynamic routing is a requirement if you wish to terminate multiple AWS VPNs from the same AWS Zone. This is currently not possible, not just automatically using the AWS config file, but even manually because the XG will not let you assign a link local (APIPA 169.254/16) address to any interface, which Amazon requires for BGP.
This feature is a must for us to switch to XG.