I have recently purchased one of these keyboards about a month ago from somewhere else around the same price mark. I am reviewing this for other customers.
I had been looking for a good gaming keyboard for a few weeks that offers quality, performance and most importantly it has to be comfortable.
After using this keyboard for a month now, I can happily confrm that this keyboard offers all of the above. I have major long gaming sessions that last between 4-6 hours and I can confirm that so far I havent suffered from any aches or pains (apart from the missus kicking me out of bed and beating me with her pillow/handbag) ;-)
The keyboard lights up well in the dark and I can see all the keys perfect. The wrist support and keyboard layout is superb. The software was simple and easy to install/use.
overall a solid keyboard, fast response time and very comfortable.
I would recommend this to anyone 10/10 for me....