Pros: It blocks out most background noise
Cons: Keep it out of the wind and you will love it.

When I first used this thing, I found it hard to wear and even harder to figure out how to use. I then read the owners manual and discovered that I was not putting it on my ear correctly. I had to install 3 different rubber ear inserts (included in the box) before finding one that I liked. After getting that right i tried it with my Blackberry 8700c and after figuring out how to use it was extremely satisfied. I took it out in my noisy 06 Mustang with the windows down and going 85mph and made several calls. Nobody heard the engine noise or the radio and the volume was good enough for me to hear all that was said during three conversations. It is comfortable to wear and very clear to talk into. This is the only headset that I could get to work in my very loud car. I am enamored with this headset! I got this thing on Ebay for $97 including free shipping.