Symantec Endpoint Security Complete helps me prevent data breaches and boosts my productivity by providing proactive threat protection and aiding in incident diagnosis. Symantec Endpoint Security Complete effectively manages endpoint security across multiple devices through an easy-to-use interface. It allows for centralized management of endpoints, applying policies to groups of machines, and generating customized reports effortlessly. The most effective feature for threat detection in Symantec Endpoint Security Complete, in my experience, is behavior-based prevention. It analyzes behavior to proactively prevent attacks. The integrated firewall feature in Symantec Endpoint Security Complete has enhanced my overall security posture by providing more than just firewall protection. It secures endpoints and complements perimeter security offered by traditional firewalls. I find the user interface of Symantec Endpoint Security Complete easy to use. It is a single web-based interface where I can manage multiple agents, devices, and customers effortlessly. Symantec Endpoint Security Complete has minimal impact on system resources during full scans. The resource usage is low, resulting in no noticeable impact on system performance. My advice for implementing Symantec Endpoint Security Complete is to involve professionals who can manage it effectively. It is a robust solution that requires expertise for proper utilization. Without proper monitoring and management, it may not deliver its full potential. Overall, I would rate Symantec Endpoint Security Complete as an eight out of ten.