I'm running ejabberd in my home network and together with Conversations (Android app) it is my solution to have all devices report their status to my phones, tablets and pc. Easy to upgrade (when used with Docker), never complains.

It's a bit the same feeling like RabbitMQ, which I'm no longer using that much, but I also always thought that it is a reliable software. I've wondered if it is related to them being written in Erlang.