Like many other reviewers here, and on other sites these are initially excellent. In fact, they're perfect.
Allows you to connect some nice earphones to your iPhone without limiting yourself to the very limited selection of earphones containing the (essential for me) microphone and controls.
Unfortunately after only a few weeks sound cut out in one earphone and the dreaded "wiggle of the wire..." was required to bring it back. A week later and it was uncorrectable.
A shame, because the idea is spot on.
Unfortunately, despite looking after them very well they're just too flimsy.
I just wish there was an alternative.