First of all the Z35 Studio Headphones are super comfortable - sometimes I forget I even have them on. The sound quality when I play back music I've been composing is superior. All the highs, lows and mid-range tones are clear and balanced. In addition, even when I have my work turned up to a higher volume my roommate doesn't hear any extra sounds leaking from the Z35 Studio Headphones (which I've had an issue with at other times with other brand headphones.) Overall, I'm really satisfied with these headphones and happy that I purchased them.