They are fantastic. They really bring light to the night. In town on rainy roads the reflection of the lines and reflectors never happened with the stock lights.
Ran into the first problem on Sunday coming off the hill at night. We went quickly from clear to heavy fog. The reflection was grand. Lead vehicle had to shut off their TL and so did I. I have a set of PIAA 520 lights with standard bulbs that cut right through the fog. Even still I believe had it not been such a drastic immediate change they would have been fine as our eyes would have already been used to the light level.
You will love them