Con Poor touch and gesture controls
The touch pads are awkwardly positioned, which makes it easy to miss the pad on the first tap. The main controls (pause/forward/back) aren't customizeable, and are overlapping: one/two/three taps, so if you miss the pad, instead of restarting the track, you'll be going forward or pausing your music. I've gotten better at it over time, but it's still a frustrating experience. Head gestures are an option, but they can be a little too sensitive - looking both ways before crossing the street can cause a track switch.