Observium provides a free version and free trial, while others provide a free trial only. Live online training and documentation are available for observing, while others do not have these. It provides bandwidth monitoring, baseline management, resources management, server …
Observium is easier to use and "prettier" than most of the other open source tools out there. It's also significantly cheaper than most of the mid-range NMS products out there, and several orders of magnitude cheaper than the big boys. It tends to be my go-to NMS for these …
I haven't used other products that are similar to Observium. Observium is an open tool, with a robust feature set. There are elements of comparable monitoring across other tools, but nothing I've seen that is a complete parallel in terms of feature set and visualizations. If I …
It is a very good overall monitoring solution for any kind of SNMP network device. Fast and simple to set up. It is an easy, robust, and quick monitoring system. The easy-to-use user interface provides advanced capabilities for the statistical display of data, as well as diagrams. This is a great way to add auto-discovery and geographical representation of the network.
The documentation needs help. This product, like many other IT products, likes to skip the "101" stuff, assuming that you just inherently know how to do something, and the documentation is just for reference.
I have not been able to rely on the alerting engine as our primary way of knowing if devices are up or down. I'm sure that's just as much my fault as the software, but this is one area where commercial products tend to shine in comparison.
The autodiscovery of VMware virtual machines does not work properly if the ESX-level name of the VM doesn't match the VM's hostname. FileServer234 will be discovered, but "Server234 - File and Print" will not.
Observium is easier to use and "prettier" than most of the other open source tools out there. It's also significantly cheaper than most of the mid-range NMS products out there, and several orders of magnitude cheaper than the big boys. It tends to be my go-to NMS for these reasons, even when budget isn't a huge concern.