How long you use it? For 2 months.
What is so special that you like best? The high noise level, good occlusion of the ducts, the lightness
What is so special that you like least? The bass is at high level and are brouillones.
Did you tried many other models before buying it? Yes (Bose Intra; different AKG and Sony). This is the worst in my opinion because of the low if the comfort is unmatched ...
How would you rate the quality / price? Too expensive for the quality / good in terms of comfort
With experience, you do again this choice? ... I do not think.