Only used once but it told me exactly where the wire was cut. So far it seems easy to use and will be worth the money when I use it. Bought November 2019. As long as I like it. It's so handy to have a TDR so I can download test results from work so they can send to the supplier for repair. It's much harder for them to blame the internal cable. Also helps to find hidden IDFs. Very easy to use and still on my first battery. If I have one complaint, it's a headset jack that won't stay in and just flops around. Anyone working in this field must love this device and think their money is well spent.