The headset does look good, and I am definitely in need of one seeing as the left headphone of my last headset has now all but fallen off (seriously, it's just hanging by the wires :(). However, i'm not sure I like the fixed(?) microphone boom how it is, as when I'm not playing games with VOIP, or I'm not in Mumble, I prefer not to have a microphone in front of my face.
For all intents and purposes, it may look good but whether or not I would buy it depends on how well it performs. Personally, I'm skeptical about wireless headphones as I don't feel that the audio quality would be as good as a similarly priced wired headset, but then again I've not tried any recently so I can't judge.
The mouse, on the other hand, looks pretty sweet, so I'll definitely have a closer look into that. Hopefully, if I do get one, it won't be as bad an experience as my first mouse was (it was a R.A.T 3, stopped working after about 3 months, was quite uncomfortable as well). Never tried a mouse with so many buttons on the side, are they usable?!