This was a great review Joe.
I bought the wired version of this. My reason was because I use the usb-powered track-clip for the TrackIR - what's another cord? Especially when you braid them together anyway.
Maybe there is a difference between the wired and non-wired, but in the wired version I have to say that the audio is fantastic. I also used the boom over skype and people thought I was very clear. I can also say these things are comfortable. Really, really great ear cups. I had that AudioFX one by E-dimensional and while after a while the AudioFX finally got broken in and comfortable, my Logitech headset felt perfect right out of the box. Does that mean they will even get more comfortable? I'm not sure - but if nothing changes it won't matter because I'm very happy right now.
But the absolute best thing of these units (either one) are the controls on the cup as opposed to inline. No dongle thumping you in the chest. No fishing around to find it. I've already built up muscle memory to find the volume. Do wish it had a speaker-mute button in addition to the mic mute - but fine. And, the controls are on the right - so you don't have to use your stick hand (or mouse hand I guess).
I'm really, really happy with my wired set. They made a great product with this one.
I cam here to provide the same comment. This looks like a fantastic headset but there is nowhere to plug in USB-powered TrackIR accessories. If the batteries are strong, there's no reason why it could not. IR LEDs do not need that much juice and should not significantly impact run time.
Other than that, it is nice to see quality wireless gaming headsets coming out. I HATE all of the wires I have to deal with in my cockpit. The fewer, the better!