1) The UI looks very clean & easy2).
Easy integrations with other 3rd party products like Splunk3.) Good support from stealth bits4.). They have good knowledge about security threats5.), they are also providing best practices for secure deployments6), which makes me feel confident that my system will be secured7); if you want more control over what's happening in our environment then this might not fit well8)). I would recommend it only when we need an offsite monitoring tool9)), but still i'm using them because its free10)) It helps us keep track who has access or been granted permissions etc11)); by doing so now there isn't any manual work involved12))).