Summary: I am no audiophile so take this for what it's worth. I was using UE6000s, which are great-sounding but the NC is poor. These destroy the UEs in NC and might sound a little better (wider soundstage). They do not match Bose in NC. The case is large and I'm unsure I would carry-on such large item on a flight just for the NC.
Summary: The noise cancelling works okay, but on a recent flight I could still hear people. When I put my ipod on and the noise cancelling, it was amazing, I heard nothing. These are also great for making phone calls with, the sound is great.
Pros: Extremely comfortable, Great carrying case, Music Quality Excellent
Cons: Can Still Hear People, Little bulky, Noise Cancelling Okay, Sound Heard Externally
Summary: I use these headphones at every opportunity I can, which usually means in the office or at home. I listen to indie/alternative rock and EDM, and I think these headphones are versatile enough to provide me with the sound I'm looking for in both genres. The case allows for easy transportation without fear of accidentally scuffing/breaking the headphones. Also don't hold these badboys back--pair them with a headphone amp!
Summary: I haven't had the chance to use it on a flight yet but I have tried it on at home in front of the tv. My first impression on these headphones I would say they are pretty good. It blocked out most of the noise from the tv. The sounds that comes out of these headphones are pretty amazing! I would recommend these over the bose qc-15 just because it has better sounds. As far as noise cancellation, I would probably recommend the bose over these.