To start with let me say I am not a professional, I don't produce and I don't work in a studio, I am just a normal person that wants to take full advantage of his ears.
Do not buy this headset if you are into boom-boom techno and stuff like that, this is not for you, they are not going to be loud enough...
Now, if you, like me, have a good/decent amplifier and want to enjoy sound to the maximum detail this is just what you need.
I do not know anything about ohms, mixing, monitoring, etc, etc, but I can tell you that the sound that comes out of this thing is just impressive. Put this on and turn the music up, but not to loud because it becomes addictive and your ear will end up paying for your bravery...the headset has no limit, your ears will explode before you hear any distorsion, understanding you are listening to good quality music and no funny bad quality recordings.
Comfort level: just amazing!!! The velvety looking ear pads are just like pillows and they are comfortable to wear for very, very long sessions, and on top of all this I wear glasses: not a problem, you just don't feel them. No matter how big your head or your ears are (and mine are pretty big) the headset will fit and completely seal your ear. You won't hear anybody else in the room and even better, nobody will hear you or at least not very much...just fantastic.
I read lots of reviews and checked lots of other choices before buying this and finally I went for this model and I am just 100% satisfied with my choice. They are a bit pricy if you were looking for a 30 pound headset but if you really care about quality you will not regreat the economical effort. For this price this is just an amazing set.
Some music I listened to with this on: Joe Satriani, Pink Floyd, lounge music, Fleetwood Mac and some classical stuff.
Hope this helps,