The ease of scrolling is mostly a good thing. However, several times throughout the week, as I was making a turn (sometimes with one hand on the wheel), I mistakenly slid my hand over the scrolling device, thus inadvertently quickly blasting the audio volume. This quirk in user function might not be frequent or common, but the discomfort to my ears was real. The novel tool feels like it has not yet been fully utilized, with rumors about using them for easier AC fan control as just one example. Fortunately, the possibilities are endless by virtue of over-the-air updates.