More control over the rewriting process during redirects/proxying. Support for path matching as well as hostname matching. (Small performance hit, but only for hosts where you match paths. I wouldn't recommend using this with a lot of path rules on a given host name). Support for wildcard matches on hosts (".my.com" will match "anything.my.com" etc.) on ssl (for host.my.com, if host.my.com.json is not found, my.com.json will be used (if available) to support wildcard certificates).