- How long have you use it?

Just over six months, he replaced my simple (but not bad!) Sony headphones which one of the two did not work.

- What is so special that you like most and least?

(+) Excellent sound, I use a player COWON D2 (FLAC files), mainly on the metal. Nothing to say, the sound is powerful, the bass come out perfectly, what a pleasure!
(+) Transport is isolated enough without having to put her up.
(+) The look very nice unless you want a super quiet headphone.
(+) Jack gold, and connections feel solid, I hope they mean it!
--------
(-) Comfort level, it warms the ears after several hours of listening, big heads and surely will find it too small, even set to maximum.
(-) Wire is too long.

- Have you tried many other models before buying it?

I tested a dozen hats in the shop for a good hour, and it is finally without hesitation that I chose the AKG, Koss compared to a Bose or other.
As I said I listen to mostly metal and music in this category is the one who made the best depth and power of style.

- How would you rate the quality / price?

For less than 100 euros is one of the best in my opinion (paid 70 euros).

- With experience, you do again this choice? ...

Without hesitation.