If you already own a pair, the best review of all you can get, is your own.
Reviews can only go to a certain length, and some of the non-scientific results will always be based on personal preference, eventhough proffesional reviewers are good at trying to provide a neutral verdict, there will be a litlle bit of personal preference used to describe the sound impression.
But some people prefer a sound leaning towards a sound rich in bass, other prefer a crystal clear sound, some want EQ neutral, and so on.
So unless you are considering returning them, and opening the box to try the headset would cancel that possibility, you should fire up some of your favourite game, movies music, everything you intend to use them for, and see for yourself if you like them.
Some may hate them, some may love them, some probably don't care.
But to me, it seems like I've seen mostly positive reviews and opinions on both sound and build quality, and at a fair price for what you get.