The review indicates that the "Stone" works about as well as its namesake.
Also, while they don't point this out as a specific issue: the fact that the headset requires the portable charging base (which in turn is charged with a mini-USB) means that you have to carry both when you travel. I would prefer something that has a USB charging port directly on it.
This thing looks cool, but Jabra seems to have forgotten that it also has to function well too.