Pros:Noice cancelationis great. Comfortable. On/off ear technology is good, too.
Cons:None that I've noticed.
I replaced an older Plantronics headset because I use it mostly in the car and clients reported difficulty hearing me of the road noise. The Voyager Pro has noise canceling technology that really works. I had one person ask if I was in the office — for the first time he couldn't tell I was in the car!
I'm extremely happy with this model. It's much more comfortable than my old headset as well.