How long have you been using?

Years over 10 years

Did you try many other models before buying it?

Several supposedly better, respecting the same price range

What is so special that you like most and least?

The +: the headband, foam, cable length
The - the price Sennheiser will revise the price as well as accessories

How do you rate the quality / price?
With experience, you do again this choice? ...

Make the same choice??? it is hard to find a store where you can compare real headphones, so I stay with it