SCOM is currently being used to manage and monitor Microsoft Windows, Linux/UNIX, and iSeries environments. It is currently used by the Infrastructure team to gain visibility over CPU, disk, network reach-ability. It is the de-facto monitoring system for the enterprise.
SolarWinds stacks well on the ease of use with an easily installable version and highly modular (products can be added to the basic installation and are easily managed from a single endpoint. System Center Operations Manager was selected because the majority of the environment is based on Windows products and it was part of the licensing agreement. It offered an easy way to consolidate the monitoring tools to provide a single point of management.