The first time I listened to anything through this headset I was amazed at how much better it sounded than my Razer Kraken headset (getting rid of that one now). The sound quality is crisp and you can make some adjustments via the included software to customize it to your taste a bit. I've only heard video reviews of the sound of the mic, so I can't so TOO much on that, but it does sound just fine in the reviews. I went to school for audio engineering, though, and I know that Sennheiser mics are very very high quality, so I'm sure once I hear my own voice through it that will be confirmed. They're lightweight and comfortable. I like the volume knob on the right ear cup a lot. The only 2 reasons I give this a 4 instead of 5 star review are the cable and the ear cups. I can't see wearing these for more than an hour at a time without having to take a 10 minute break. The faux-leather ear cups do get pretty hot. If there was a different material and they had cooling gel, they would be perfect. The only other downside is the cord. It's make of a cheap tacky rubber material that has SERIOUS cable memory. It twists up if you just look at it funny. You can alleviate this (if you're going to use them at your desk only) by stapling it up underneath your desk so that the only parts of the cord that you actually need are free and the rest are managed and out of the way. However, there are various mixed reviews (out of all the ones I've read) on all of these topics. This is just my opinion. I use for casual gaming and these are quite the step up from my previous headset.