Like a lot of Wooters, I got these in a previous Woot! when they were "free" after rebate, so this is a better deal.
I got three of 'em, and use them for EVERYTHING! They link to my desktop, my netbook, my iPhone.... I haven't found anything they won't work with. I use it with my desktop with Skype a LOT, and it's great for that!
Battery life is exceptionally good, and I especially like the hard switch for turning them off; they don't inadvertently come one when I throw them in my backpack.
Sound quality is a little above average. Volume could be a little higher, and sometimes I need to consciously speak louder so the other guy can hear me. Noise cancelling isn't as good as my previous (Lost, sniff) Jawbone, but it is pretty good for the price.
If I hadn't loaded up on three last time, I would be in for three this time.
BUT! Do NOT plan on seeing that rebate any time soon. I mailed my rebates the day I got the package, and a few days later was (pleasantly!) surprised to receive an email that my rebates were received, in order, and were being processed. Plus a link to check status on their web page. True Fact: My rebate status has been "Your rebate is valid and is scheduled for final processing" since 11/25/09.
Either something has gone horribly wrong there, or they are taking their sweet ol' time. A little frustrating, but hey! The headsets are GREAT for the price!