Cons: None significant
Excellent reception on my end, and the folks on the other end always say I sound loud and clear. What more could you want? Oh yeah, it's very comfortable too! Believe me, I've tried lots of headsets, and the quality on this Panny set blows away every other one I've tried -- and the price/value ratio is just off the charts.
After many years I'm still using these. A couple have broken on me with no easy way to fix them, but they are cheap enough to be considered a disposable product. These days I have a second pair on standby because I'm pretty sure I'll snap the headband on my current pair eventually.
The headset doesn't feel delicate, but I guess it is, or at least some internal wiring is, as poor durability is reported. It's not an excuse, but you ~could~ buy 2 or 3 of these for the same price as more expensive models (even Panasonic) and still not get a headset as good-sounding or as comfortable.