The biggest advantage is that with good infrastructure, you can utilize asset planning when using Nessus along with Tenable OT Security.
Tenable OT Security is highly valued for easy management of components and features, providing effective vulnerability identification and risk mitigation for IT and OT assets. User appreciation highlights detailed asset discovery and port scanning capabilities. Distinction between IT and OT environments offers a significant advantage, though integration and metadata details need enhancement. Improvements in IoT support and attack prevention features are necessary, alongside automation in response, especially in challenging OT environments.