I've had these for 6 months now, they are still going strong and haven't broken.
I like the sound quality, I guess the bass could be better but for the price they are good.
The buds aren't as good as they could be, and if you listen for music several hours at a time I'd recommend looking elsewhere, but if you're like me and listen <2hr at a time you shouldn't experience any problems.
The only super frustrating thing is the buttons, they're designed for Apple products and will not work properly in any other device (Nexus 4/Zune HD here) which is annoying. But overall, for the price they're well worth a buy.