Primary issues is there is no "over the ear" loop which is necessary because if you're doing situps, these fall right off.

but I had a couple negative issues with them

Never had an issue talking with them while working outside, I don't take phone calls while riding

No problems with the fit, issues with the buds coming out

Awesome set for running never have an issue with them falling out!!

x2 didnt have same fall out issue.

This usually wasn't an issue with a collared shirt on, but for anyone doing anything active (such as stacking firewood, etc), they would fall off more than you'd like.-no magnets or other ways to attach the earbuds to the neckband, making it somewhat cumbersome to dig the earbud wire out from under a collared shirt.

I have had no abnormal connection issues

The only issue is hat they do get bit tangled in long hair when I am trying to take them off quickly but that is a pretty small complaint and most men and women with shorter hair won't have this issue