Recently my wife gave me a set as a gift. After using them I think they are amazing. I believe their best quieting function is the low rumble of a jet engines, but despite the criticsms I've read I've had an excellent experience with them in the office too. I attach them to my iPhone and listen to iTunes or AOLRadio. They eliminate most external noise and the sound quality of the music or lecturer left behind is great. I couldn't be happier or more impressed with them. Does anyone have a pair? What are other opinions out here?