I like that it is very customizable, easy to use and has a lot of plugins for different devices. It also allows you to set up alerts so if something goes wrong with your network or device there's an alert sent out straight away. The support is good as well! They are always willing to help and respond quickly. Sometimes when setting things up it takes some time but they will work through this together until everything is working properly. Setting things up was not too hard but sometimes it can be confusing at first and require more than one try before all works perfectly. Also have seen some bugs in older versions where certain parts would stop being updated, but after updating those were fixed. There could definitely be better documentation about how to get started using LibreNMS. We're solving problems by monitoring our networks so we need software that does exactly what we want. So far librenms seems to do just that!