It is an easy to use product and you can build out checks with Firefox Selenium IDE (no longer supported). Good measure of availability Review collected by and hosted on G2.com.
It's very clunky. Infrastructure is large and very difficult to upgrade. SaaS and On-premise versions are different. There is an LDAP integration, but users can only be assigned to one group (i.e. department). If you are in 2 departments, you need 2 separate logins. It filled a gap in monitoring for us, but we're looking to move on. Review collected by and hosted on G2.com.