I have had loads of different headphones some good and some not so good, but recently I've pushed the boat out and treated myself to a pair of Bose QuietComfort15. Expensive? Yes extremely, but hey, this is a serious brand so what do you expect... They look great and they come in a really beautiful protective carry case which is important if like me you are a frequent flier.
When you put these headphones on they are extremely comfortable and they feel and sound great as you might expect. They even include a really cool iPhone cable accessory.
So what's the problem, I hear you ask..? Well two issues really. Firstly while the noise cancellation feature is wonderful the actual sound leakage is terrible. Sometimes I wear these headphones in bed while my wife is reading with the light on, but she keeps asking me to turn them down even if the volume isn't that high. It was only when I asked her to try them on that I could clearly hear the problem. The sound leaks VERY badly indeed. Secondly its fine if you're sitting down but try walking outdoors with these headphones and there quite noisy, you can hear a lot more than just your music. I have a pair of Sony MDR-NC40 noise cancelling headphones which cost € 100 euro (less than a third of the Bose price) and Which? Magazine say DON'T BUY but to be honest they sound and feel just as good as the Bose
I'm a bit disappointed, but hey…I still love them, and I would recommend them if you've loads of spare cash..I really wish I could have given them more stars