I've got one as well, and I've really liked it. I also replaced my aging G15 with this.
My only complaints are:
1. To use the LED backlighting -- and you'll want to because the keys are not easy to read without it on -- you have to flip a DIP switch that disables the context button (between the right OS key and right Ctrl) and turns it into the modal button for the backlighting. You rarely need to use this key, but I have missed it once or twice since nothing replaces it. I don't understand why they didn't pick something truly useless, like Scroll Lock, or let the button continue to function normally on top of the additional buttons. I like to be able to turn the light off, so I leave the DIP on.
2. The left shift key squeaks once in awhile. I tend to depress the far right of the key and it's a pretty wide key. It makes a squeak if I'm not careful. It's entirely my typing and I mostly don't do it anymore, but it did annoy me at first.
Otherwise it's easily the best keyboard I've used. For a mechanical keyboard, it's very quiet.