Overview:This is the most awesome keyboard I've ever used. Totally programmable down to the LEDs. The layout is sweet and the keys super, maybe too super, responsive.Pros:Wow, what a keyboard. It's hard to know where to start. The keys are snappy and make typing fast a pleasure. The LED lighting is superb and you can have as many lighting modes as you want and flip between them in the click of a button.The jog wheel is nice and changes color depending on feature selected but it does make for a nice way to skip through songs or through videos.There is a lock key for the Windows button so you don't have the Windows Star Menu popping up while working extensively with the Ctrl, Alt or Shift buttons often such as in Photoshop. I love this feature because the keys are so close together I am often hitting the Windows button by accident. This eliminates that problem and I don't mind using the mouse to bring up the Windows Start Menu.The media buttons are in the BEST possible location and seem to work with what ever player is active. The mute is very and you will love the cylinder shaped volume button which is perfectly responsive and well placed. If you play music on your PC, you will love this Keyboard.The iCUE software is incredible and lets you program the colors down to the individual key. The keys are very responsive, perhaps a bit too responsive if anything. No, you cannot rest your fingers on the keys, but when you do touch one, it recognizes it instantly.This is a full size keyboard with number key pad which is the way I prefer it. This will take up some desk space BUT all the keys are there. I couldn't and wouldn't work on a keyboard without it.The G1 through G6 programmable keys add a bit to the length of the keyboard but not by a lot. They are handy but I might have looked into locating them away from the left edge. I do on occasion mistake G6 for Control but that is from 50 years of typing on a standard keyboard where the bottom left most key was Ctrl. I am slowly getting better. You can program these keys for what ever purpose you want and if 6 keys are not enough then you can flip between saved modes at the touch of a button (or a mouse key if you couple the keyboard with the proper Corsair mouse). And if that wasn't enough, those modes allow you to program just about any key or key combination to do anything you want from launching programs to entire scripts. Very, very handy.Cons:Yes, this keyboard is NOT Ergonomic!!!! It does have a nice wrist rest but switching from a fully ergonomic keyboard (Microsoft Wireless 7000 series) back to an straight in line keyboard has been a challenge. I would have loved to see this in a similar ergonomic curved design but you just don't see any that do RGB the way this thing does. So if you are used to a straight keyboard, you will love this. If you are used to a truly ergonomic keyboard, this will take some getting used to but I love it so much it's worth the frustrations. If they do introduce an ergonomic version of this keyboard I will be all over it.iCUE isn't all they claim it to be. Like most of the RGB software on the market it's glitchy and doesn't play nice with other brands. The board claims to be ASUS Aura compliant but IT IS NOT!! I constantly have to reset my ASUS Armory Crate software controlling my system fans and memory LEDs because the iCUE software steps on it even if you turn off the ASUS features in iCUE. The iCUE software claims to support ASUS Aura and I can control the motherboard and even Graphic Processor lighting but it ignores all the ASUS Aura headers on the motherboard so memory modules and fans cannot be controlled by iCUE. This is NOT Aura compatible and IMO, they should remove the claim that it is.Overview:I can't say enough good thins about the design of this keyboard. I absolutely love it. Yes, I would love to have a true ergonomic version with curved layout of the keys but it's still a pleasure to use. If not for the iCUE compatibility issues with ASUS this would have gotten a full on positive review. Not sorry I went with this keyboard but might have opted for the ASUS keyboard and mouse had I known about the software issues. Corsair seems to have no intention of fixing the issues though admitting it doesn't work as advertised.