not as good as supplied mount [SEP] i had a beltronics radar detector and had an arkon mount that is similar to this one i never had any problems with the arkon mount but cannot say the same for this mount after the beltronics was stolen i purchased a cobra replacement and this mount to replace the arkon windshield mount because it would not work with the cobra but this mount is nowhere near as good as the arkon mount was specifically the differences between this and the arkon are two i have to reattach the mount to the windshield weekly because it eventually loses its hold and falls off i have to retighten the leveling screw often because it loosens with vibration and the detector does not stay levelyou are better off using the mount that comes with the detector than spending extra money for this one there also may be others sold on amazon that are better than this one