The swipe controls are terrible on my Pro 2s and make me miss physical buttons like on my ancient Jabra 65t. It's easier to reach into a pocket and push the volume buttons on my phone without unlocking or looking at it.
Miss that a lot. Nowadays it's all touch and I hate it so much because for some reason I have a problem spatially locating them and always end up touching it the wrong way (and yes, I know... ;)