Call me old, but I really enjoy typing on a mechanical keyboard. I purchased this keyboard not for gaming, but for keyboarding/typing. Personally, I prefer keyboards that have a little bit of a click to them. This is a silent keyboard that does not have the tactile "click" when I type, which I kind of miss. I do not blame Corsair for this... They market it as a quiet mechanical keyboard, and I did have an opportunity to try it out on a display at Best Buy before buying it, so I have no one to blame but myself. Ironically enough, my wife likes it better because my previous "clicky" keyboard drove her nuts.
What makes me tolerate the absence of my tactile click when I type is the LED effects on the keyboard. For me, it serves no function but simply aesthetics, but I really like it. Makes me feel like a geek, I suppose. One thing I do not like, however, is that the lighting themes are controlled through a program on the PC and when my computer goes to sleep, the keyboard goes back to the default lighting scheme (which is really not very cool or attractive, in my opinion). As soon as I log back in, the keyboard goes back to the previous theme, so it is not a huge deal, but I really wish the keyboard itself would somehow remember its theme setting so it would boot up in that setting and stay in the theme even when the computer goes to sleep.
Another minor annoyance that I did not even notice when I bought the keyboard is that the numeric and other special keys have the characters reversed. The number keys, for instance, have the numbers on the top of the keys, not the bottom, with the symbols on the bottom, not the top. Good thing I am a touch typist, otherwise this would bother me even more than it does now. I use the shift key to access the characters on the top of the key. With the way this keyboard is physically set up, I have to use the shift key to go "down" to the special character on the key. This is very counterintuitive and a huge annoyance. I would also like a way to toggle the function keys as opposed to having to hold the special function key any time I want to increase or decrease the volume. Maybe I'm spoiled by my Mac, but I find myself using function keys less and less for their F1 through F12 functions, and more for things like skipping songs and adjusting the volume.
There is a button on the keyboard that allows me to toggle the lighting between three different brightness settings (or off entirely) without having to do anything within the operating system itself, which is nice.
In the end, my complaints are somewhat minor and it is a good keyboard with a solid, albeit soft (due to the lack of the tactile click) feel when typing. Now if only they would start making mechanical LED keyboards like this one for the Mac...