This is my first amazon review, so please bear with me. Also, I'm Norwegian, so I hope there aren't to many spelling errors.
Anyway...
First of all, I'm really impressed with Amazon.co.uk's delivery time. Even with the "super-saver" delivery it only took 2 days from order to they were delivered.(to UK address) Impressive!!!
As for the headphones, having used them for just over a week now, I really can't understand how I have survived without. Apple should be ashamed of themselves, as these Sennheiser's kick the Apple buds right back to the stoneage. The bass is rich and deep, the quiet parts of songs are given new life as you keep on noticing things that before were drowned out, and the vocals are clear and crisp. These headphones truly are allrounders, and cope just as well with Damien Rice and classical music as they do with AC/DC and Guns 'n' Roses.
Please, take your time to find the correct sleeves for YOUR ears, for me the smallest ones fit best. If you don't your music will be tinny and sound horrible. Some of the reviewers here haven't understood this, it looks like.
The 'phones are lightweight and feel solid, and also come with a 2-year warranty, which is nice. And be assured, they are not difficult to place in your ear, although if does feel a bit strange the first couple of times. Also, dirt is easily removed with a damp cloth, or just using your finger.
As with all ear-canal earphones, some sound is sent up the leads when you move around, and sure, you can hear yourself eat. But this is only a problem until you press play.
They do a good job of blocking out the sounds around you, as well as saving the people around you having to listen to your music. This makes them perfect for use on trains, planes or in a busy office environment.
However, I do not recommend using them whilst running, as you cannot hear what is going on around you, which can be dangerous both for you and the people around you.
I now feel I have the perfect combination of portable headphones, as I already own a pair of wonderful Koss Porta-Pros. The two fulfill each other, and make me one happy camper.
At 16£, these Sennheisers are a true steal!! I guess quality does come cheap in some cases. They are actually cheaper here than at amazon.com. I think I might buy another couple of pairs, they make great presents.
Hope my writeup wasn't a total waste of time.
Rgds.