I mean, in most cases it just works, for typical "Here is my HTTP server" services. But for batch processes, not so well, as you're not exposing a HTTP endpoint

I mean, in most cases it just works, for typical "Here is my HTTP server" services. But for batch processes, not so well, as you're not exposing a HTTP endpoint. Pull does work like 90% of the time, + you get a handy uptime check built-in as well, as if the pull didn't work, the service is probably offline and you'll notice it immediately. With Push you still need a way of checking if the service is online/offline.