I have 19s, but wanted 20s. It looks like VW didn't go with low profile 20s, so I don't imagine they ride terribly or be a risk for dented wheels.Not that I know of. Most people, myself included, think the 20's ride totally fine. I thought I could tell the difference in ride comfort between the 19's and 20's, but being completely honest, I don't have enough time on the 20's to give a fair and accurate assessment. My primary drivers for wanting to switch were higher tire walls for extra pothole protection, a little extra range, and lower costs for eventual tire replacement.
However, I don't know firsthand, which is why I asked.