I bought this headset to replace the H700 that I just gave to my wife.  I thought the H700 was a great headset but this one took a good thing and made it better.  I considered just getting another H700 but they are a little tricky to find because you have to make sure you get the "C" version (labeled H700C on the headset) because the earlier versions (especially the "A" had terrible sound quality (I can verify from personal experience.)  There are still a lot of the older versions out there so it is a hassle to avoid them.