I think my brother used these, and they're alright and comfy, but I would suggest something else, I just 2 days ago bought some Siberia V2's with the external soundcard for 7.1 surround sound for a bit less than what those cost.
But now that you say you've already bought them, have fun, they're decent and if you treat them right they can last rather long (My brother has had them for about 5-7 years or so and they work fine, not the best quality or price but yes, they're alright.)
EDIT: It is also a good idea to see if you can find reviews for something you might purchase, that's a better source rather than someone's opinion.
"I've begun my voyage in a paper boat without a bottom; I will fly to the moon in it."
"When this paper aeroplane leaves the cliff edge, and carves parallel vapour trails in the dark, we will come together."
"I believe everyone in this world deserve the happines the world can give them. If it can't give them any, they deserve another world."
