Overall Summary: The sound is overall really good. If you're just looking for gaming surround sound and quality isn't the main concern, these would be pretty good for you. The price is nice at ~$70, so they shouldn't be out of reach for anyone really. They feel great, I've worn them for the past 9 months almost for an average of ~9-12 hours each day, sometimes longer, sometimes shorter. Never really give me any comfort issues. They're extremely lightweight, and feel really well built. The sound is pretty good, however I haven't listened to my new headphones yet, so I don't have much to compare them to yet. The surround sound is great, but I'm sure the quality can be easily beaten by real headphones, not a headset.
The mic has great quality as far as headsets go, and it's pretty flexible. The ears pivot sideways so they're pretty comfy and portable. They also have a USB sound card that is completely optional, so if you don't want to use their software, you can remove it and connect via analog 3.5mm jack and either take it on the go, or use your own software for virtual surround sound.
The cable is also 10 feet long, which can get annoying at times. However, it's a braided cable which is really nice. It doesn't get tangled at all. The ear pads and top headrest are also made out of a cloth like material, so they don't make you hot or anything, and they are no problem to wash. They're very breathable too.
Pros: Good sound, nice sound stage (with software), firm build quality, washable pads, clear sounding adjustable boom mic, extremely comfortable and lightweight, great for the price
Cons: Software is nice... if it works. Hit or miss if it'll work with you, but if it works, you're good unless you reinstall your OS. I tried these on Linux, and oddly enough I only heard sound out of the front two channels. It's really weird and baffles me to this day.
Final Thoughts: If you're budget is around the price of these, and you're main focus is gaming surround sound, get these. If they don't work with your OS, try to battle Logitech's useless support and see what they can offer. They're most likely not going to do crap, as most of their techs are clueless. If it doesn't work you can always get it sent back. However, if they do work (which happens most of the time) then you'll probably be fine, just be careful with updates and stuff, the Logitech Gaming Software is known to have unresolved issues.
I don't get any static at all by putting its inline volume to 100%, but the left channel is significantly louder than the right channel when it's set to something around 30%. So most of the time I adjust the volume with Windows controls.
The driver worked very well and reliably for me, with no issues, but the build quality seems ****ty to me, as it's made out of some really cheap plastic and it just keeps emitting weird clicking sound when I handle it. By that sound I can judge that it won't take long for them to break apart.
Anyway, the audio quality is totally bad. It does recreate bass pretty well, but that's it. I shall say, it *ONLY* recreates bass. Everything else is ridiculously low in quality. Buying these was the worst decision in my life. You can get a much better value for the money if you just buy the USB dongle that comes with it (~30$), and then buying some cheap headphones + a cheap microphone. The quality just can't be worse.
By the way, I have tested the dongle with some different headphones - the driver installs without any issues and recognizes it as G430, and the surround sound works just well - sometimes even better.