Easy install, no vehicle flash needed. Infinitely better than the stock halogen bulbs were. These are so bright that I can barely notice when halogen fog lights are on, although too will soon be replaced with LED. Alignment was perfect, did not have to adjust aim. Nothing but positive feedback from me one this set with one suggestion to the manufacturer or for your consideration when installing; the DRL ISD powered via a fuse tap and works fine functionality wise however the instructions clearly state that no modification is required. Without modification to the fuse box the lid will no longer securely snap in place on both sides, if you force it to you are going to pinch or cut insulation of DRL cable. I currently have only one side snapped until I take the time to cut a notch or install a grommet to better facilitate the wire.
I cannot speak too is longevity at this is a recent install.