I gave it 4 out of 5 because I can’t comment on it longevity as I have only had it for a week. It is installed in the Center of my f150 roof. I drilled the 3/4” hole and used the Larsen NMO coax kit. It is hooked to an IC2300. I hit all the local repeaters as I expected it would. The surprise was hitting Kintore Mt. Repeater (VE9KMT) with 25 watts. From my driveway it is 91km! A fellow ham came back telling me my audio had some static but 100% understandable!