Ireally enjoyed these headphones. They were very comfortable and very light. I went around the globe with them using them every day for a few years and they didn't have any signs of wear or break down at all. That's not a testament to their manufacturing quality, thats just a testament to how great I am with my headphones. High 5! No? ok. They sound great but they don't do bass well. You have to keep bass boosts off and if your music is heavy on the bass then you can't crank them up too high or the bass will distort. Luckily they sound great at normal loud listening levels and you'll be able to hear twice as many instruments as with low quality headphones. That doesn't mean that new instruments will magically appear, it means that the chello you didn't notice before - you can notice it now.
They have a big feeling sound stage. Sometimes it sounded like the orchestra was 30 feet away. That's pretty cool because my AKG k 171's don't do that. They work great for gaming. When I first put them on in Oblivion I heard the flicker of torch fire as I walked down the wall, I didn't know torches made sound until that moment. Other sounds appears like water dripping in caves, clothes rustling.. they really give a lot for their price.
If you're used to cheap $50-$80 headphones or ipod ones then these will be great. Just be aware that the bass distorts at high volume with bass heavy songs.
I now use AKG k 171's because I forgot My triports in a hostel in Scandinavia. When I first got my AKG k 171's I wished I had my triports instead because they were much more comfortable and I prefered their sound more. Honestly I don't know which is better between them, I just know I really enjoyed my triports a lot and these AKG k 171's are just 'ok'.
If you want a free pair of triports, look at the hostel in Copenhagen.