Interface it super easy to use. Auto discover of equipment produced by industry kingpins

LibreNMS comes ready to work out of the box with many different vendors, Whether Cisco, HP, Juniper, or any other brand it's likely supported. It is full of features you may never need for any device and can be integrated with tons of plugins to help with configuration management and weather mapping. Did I mention it's open source, heavily documented, and supports a variety of installation methods?

I like the flexibility, no matter the make and model of the device you want to monitor, you can do it! Also, the community support is excellent and very reactive!