My sister runs them with 17" OZ Superleggeras on her MkIV Golf. I had picked the tires for her due to her slightly aggressive driving style and unwillingness to alter her driving style in the rain.
Funny thing is, even she notices the huge difference these tires made in the rain. In fact, last time I rode with her, it was raining and she was still running her winter set. She notices the difference in traction so much that she was actually adjusting her speed and following distance due to the winter tires she was on at the time. That to me makes them all worth it.