- How long have you use it?
I've had two weeks

- What is so special that you like most and least?
Comfortable
Very good music reproduction
The bass is superb

- Have you tried many other models before buying it?
Compared to the Sennheiser PX200 (highly rated on this site), the Koss PortaPro is more comfortable, we feel less on the bay windows, the bass is better, more musical, less transparency in the treble. I prefer the Koss to listen to music and PX200 for decision ambience sounds.

- How would you rate the quality / price?
Super price / quality ratio

- With experience, you do again this choice? ...
A choose first.