Based on our own experience, this network tester has proven to be a valuable tool in our daily operations .It's easy to use and provides accurate results. The LCD screen is clear, and the tool itself is well-built and durable. The testers range and versatility allow us to quickly diagnose and troubleshoot issues and its compact size makes it easy to carry around. The only con we've found is that it does not come with a case. Overall, we highly recommend this network tester for professionals in the industry..