Is Ryanair really that bad?
Back to topic now... I personally can't stand noise cancelling head phones for the following two reasons:
1. I personally don't find it safe to have something that disables me from hearing Cabin Crew announcement as you never know when a emergency could happen.
2. I find it removes the best part of the flight, that being the sound of the engine throttle up for take-off, then throttle down for flight and finally throttle up again when put in reverse mode (love the sound of GE90 reversing
).