Thanks. I haven't had any problems. The ride quality is fine, more firm than 15s obviously, but very livable as a daily driver as long as your roads are half way decent. And the wider performance tires will be louder than stock size, and you'll get some minor tramlining (front tires like to follow little irregularities in the road). Both of these things would come with a wider summer tire, no matter the size. I have had two sets of 18s over about 4 years now, never had a problem.