These are the most comfortable and best sounding earbuds I've ever had. The sound is amazing - very rich bass - and they have never hurt my ears after wearing them - I use them all day at work. They stay put for running/biking and the microphone works great with my phone (not iPhone). The microphone knob sometimes catches if I'm wearing a collared shirt, but I can't complain about that since I think these were meant for activity, and you don't typically wear collared shirts being active.
This review was written in the old system and had content requirements that are different than reviews written today.