I've used this keyboard for a whole night (got it early in the morning) the packaging looks so clean and was easy to setup. The cord is amazing but will take a while to loosen up.
First of all the only bad thing I have to say about this is when I am typing for anything over 20 to 30 words my fingers start to get tired from the awkward height of the keyboard. This may just be my personal negative opinion towards this keyboard but I thought I should mention it.
The RGB lightning is such a sick feature and I love playing around with the different macros and patterns that I can make. Right now me and my friends are working on buying 300 Corsair K70 RGBs to put them all together on a mountain and watch some movies with the LEDs coded to play the pixles of any movie we want. Even some sick sick games like World of Tanks!!!
The keys are so nice and easy to take off. I had 1 moment when I was just resting my fingers on top of the keyboard and I was accidentally pressing [A] without me realizing. Not a very big deal but just keep it in mind if you rest your fingers heavily on the keyboard.
Overall I can see myself using this keyboard for a long time (probably until it breaks). Thanks Corsair ez skinz ez lyfe.