execution is very good. DIY support is adept, I still need help as my own miss-steps have 1 of 3 floors with an open ground line and can't find it (yet) Cust support can't be faulted, they are good-excellent during their open hours. Would do it all again. Keep testing the cable during installation at every step is my advice. Still can't imagine how such a tough cable could break. Well this is my first one. Product is very good, pricing was fair-OK delivery excellent, support ... vg to excellent. Fact Rep requested to diagnose and repair the last floor. I might be newbee and lapsed somehow. Overall great exp... Will update. MJ