Really easy to use monitoring solution with great features out of the box.
Overall it is very good product for monitoring solution.
SiteScope is one of the simple tool to learn when it comes to performance monitoring. It supports variety of monitors which helps production team to monitor the health of the systems.
Sometimes it can generate fake alarms. Fake alarm when network connection is disconnected.
Sometimes they can send fake sms when their services stop.
Because it is agentless and run query from the network, sometimes it may give wrong alert.