I have owned two Z9s and, in general, I would say the product is excellent. Light in the ear with clarity on most of my calls. Reception in wind works well - mostly. I ordered the Z9 because I do a lot of driving, and I didn't want to hold a phone to my ear. My first Z9 headset was excellent; however, I managed to run over the headset and it simply decided not to work. My second has a strange problem. When I answer an incoming call, the person on the other end mentions an ear-splitting screech and then every thing seems ok. What does bug me is the problem of the rubber earbuds. They fall apart after a few months of use. My expectation is that if you can build a product that does everything else well, why would you let poor quality earbuds detract from the customer's perception and rating of the product?