Summary: I listened to these very carefully, and although I almost fell in love with them and their very businesslike appearance, I did feel like an idiot for wearing something that's all about its looks. Swapping between these and similarly priced earphones I found that while they're inoffensive, they were doing nothing out of the ordinary besides looking like a million bucks, and their writeup on Senn's site and the packaging seemed to back this up.
Summary: I bought these a few weeks ago, and like the other reviewer mentioned, they don't do anything too special. They are fairly detailed for an IEM at this level, and provide globs of bass. The inline iphone remote is especially nice. There is quite of bit of microphonics.
I will be keeping these as IEMs to use at the gym.
Summary: Pros: Good sound and very comfortable. Cons: the volume control doesn't work with Android phones, and since it is square it always gets hooked on zippers of clothing like a sweater or jacket. You might not think this is a big deal but I found it to be incredibly annoying.
Summary: These are definitely good quality and do seem to be exactly the same as the originals the headphones came with. Having lost the previous large ones Id been struggling on with the medium ones moaning about how much better my cheaper headphones sounded. Now Ive got the right size back it transforms how they sound!
Summary: What can I say? They're exactly the same as the ones that came with my CX870 earphones, complete with the little bar in the middle that stops the diaphragm guard coming out and disappearing down your earhole. Which wouldn't be good. The only thing is, the set appears to also include several other types of earbud. However the ones I wanted (the ones shown in the product picture) seem to be in the majority.