I appreciated the easy installation: plug it in and it works. (On a Windows 7 Dell laptop docking station.)
I find the headset very comfortable; smooth-surface ear pads are better than foam for me. The microphone boom works left side or right and its shape is adjustable to put it where you prefer alongside your face. Sounds fine. Controls on an inline gadget on the cord are handy: mute, volume, on/off
None; so far