I have been using this tool since 2013 in my previous job as CTO at IBM India Pvt Ltd., where we used it extensively with our main product - Tivoli Asset Manager (TAM).
The user interface of LYNIS was very simple but powerful enough which made us really comfortable while working over there! We never faced any downtime or performance issue due its excellent scalability feature-wise when deployed across multiple servers/clusters within one organization's network infrastructure.- Easy installation process by just copying files from CD / DVD media into respective directory location without installing software manually via command line; No additional license required if you are running single machine only or few machines inside your private cloud environment etc.; Highly secure appliance type application so no chance even an average hacker could crack through firewall & proxy server easily once system gets infected because all traffic flows thru VPN.