I also have Yurbuds. Great that they stay in your ears - I've caught the wire with my arm and managed not to pull them out!
Downsides - the sound quality isn't great (but is ok). I find using them with headband, I can hear the headband rubbing on them. I also find the controller not as good as the one that comes with ipod - I often find I pause the music when I mean to change the volume.