Summary: One of the best full Mechanical keyboard with macro keys, cherry reds and LEDs, the LEDs can be controlled with the mouse wheel on the keyboard, turn off/brightness. I didn't give it a 5 star cause of the O-rings, it was good without, but with the O-rings this keyboard became the best thing I have had, the feeling of Cherry keys without the "tacking" noise.
Summary: Overall I'm very happy with this keyboard. It's very pleasant to type and game with and would recommend this to anyone who needs a keyboard for work and play. One potential issue that others may run into though is that the audio connectors are attached together with the USB connectors so you can't reach any of the expansion slots where your sound card is located.
Summary: I've been using this keyboard off and on for playing CS:Source for the past couple of months and for the most part I have enjoyed it. With a good red switch keyboard like this you can use the light touch to almost float your hand on the keys and the results can be pretty good. Some users will really like the look of the blue backlight but it doesn't work well for me as I find that colour to produce eyestrain and be difficult to see so for the most part I have it switched...
Pros: Very fast MX Red switch keyboard, Heavy sturdy construction, Good wrist rest, Good macro system
Cons: Blue Backlight, Some key shake, Cannot dim very bright Aivia logo, No PS/2 connector