Summary: I've owned many pair of headphones, open and closed, many of them Sennhesiers. I have a pair of HD280Pro but they are way to bulky for travel so never having bought a poor set of Sennheisers I bought these "blind". That was a mistake. For the money they are disappointing.
Summary: I didn't buy these from Amazon, but from Argos. The subtle-looking red in the pictures is actually a rather nasty shade of mid-pink. There's an equally queasy shiny red plastic band round the gigantic Sennheiser logos on each earpiece. They aren't classy, or subtle, or stylish.
Summary: I was disappointed by the amount of leak, and the lack of sound quality. They claim to be super bass-y, but my cheapo in ear plugs sound better than these. Was a bit disappointed to say the least, should have gone for the over ear.
Summary: There's a lot to like about these headphones - they're stylish, very light to wear and the sound detail is incredible. BUT, they do NOT have 'Kick Bass'!!!! In a quiet room, the sound balance, including the bass is lovely, but the bass just doesn't kick as promised on the packaging.
Summary: These headphones remind me of the time I tried the Sennheiser PX200 - You know the decent sound is there to be heard, but can't experience it because they sit too light on your ears, thus creating an insufficient seal, resulting in a distant and bass-less sound (and more sound leakage).
Summary: This design is quite a comfortable one, they sit on the ear rather than enclosing them, but even so, they do quite an effective job of cutting out external noise. They are comfortable enough to be worn for a couple of hours on a commute/trip etc without becoming a pain.