The standout feature for me in Total Network Inventory is the resident agent deployment mode paired with the custom report builder.

TNI suited me for scanning and inventorying Windows and Linux-based computers, as well as SNMP devices. It offers a classic, fast and user-friendly UI, numerous report templates, a flexible report builder, and a very affordable price. Support also responds very quickly.

Easy to deploy, TNI's clean GUI and full featured predefined/customized asset(s) reports. Easiness to get info from Active Directory Users fields (assigned user) and practically build any table report I need. Now since TNI 4.6.0, I can save precious bandwidth when scanning asset(s) on remote locations with poor links with its new option to keep the (first time scan) scan agent on scanned assets. Also I like very much the alternate approach to deploy the resident agent to windows assets so they update their info as soon as they get connected to the network even via VPN, this is so useful for users that rarely connect to the corporate network or do home office. Also it is very helpful to RDPing Windows Computers/Servers by just right-clicking on asset's name-->Actions-->RDP with login, it saves a lot of time. Also that I can add custom Actions. And many other useful features. Of course a wonderful support staff.