I have used mine a lot and they are very good in dark conditions. You only very occasionally get someone giving you a flash but I think this might be as much because you have bright LED lights rather than dazzling them. The system is easy to use and works very well in my opinion, set and forget. If you have a second car that has non-LED and non-auto switching lights you will be wanting to get in the car with them as they make winter driving at night safer. If you only really drive in city type environments I would not spec it as an extra. On the A7 they used to be standard fit on the Sline and BE within it being an option for the SE, I don't know if that is still the case. I hope one never goes wrong out of warranty as I think they are about £1500+ each to replace and need coding and setting up by a dealer.