There are some important changes coming to New Relic in November. The main issue is that things like server monitoring will no longer be offered for free. This has caused considerable strife amongst their user base. I have been using New Relic happily for a few years now, and I like their service and mobile app. While I understand their reasons to start charging for services that were previously free, I have started looking for alternatives.
Digital Ocean, where I host the services I need to monitor, has recently introduced better monitoring utilities including handy alerts, and they might even be enough for what I need. I am also trying out NixStats at the moment. Have you found any alternatives to New Relic that you would recommend?