Pros: comfortable, good surround sound, easy to use
Cons: not modable, expensive, bad microphone
The first thing I noticed when opened the package is the excellent packaging job done by Razer. I was not surprised, since I had bought several Razer products before (keyboard, 2 mice, keypad and mousemat; let's just say I love Razer).
Several moments later I rushed to plug the USB plug of these cans into my computer to give them a listen. They sounded much better than anything I had heard before, although if listen to them now I find them horrible. A more detailed description of the sound would be that it lacks engagement and has very soft bass and mediocre highs. But back then (actually less than a year ago) I saw nothing wrong in that.
After I played some of my favorite games with this thing I learned that the surround sound is simply put awesome. I could accurately identify the source of all sounds. Although this could also be done by a reasonable sound card.
After playing a little I decided to go on Ventrilo (voice chat program) to talk with some of my friends. They immediately started complaining about load static background noise on my microphone. I logged of Ventrilo and gave my microphone a listen. Apparently this is an unfixable hardware problem that is present in a good portion of the Megalodons. It could be reduced by tweaking a lot with the microphone loudness and sensitivity, but although softer it still is there. This was probably the biggest disappointment of this headphone.
Conclusion: These cans are excellent for gaming but lack in sound quality and especially microphone quality. If I were to assign a value to these headphones I would probably put it around 70-80ish dollars, less than half of the price. Ah well, we all learn from mistakes, don't we?