What a great keyboard! I had been looking for a lighted keyboard for a desk in an area that is typically on the darker side, even during the day. This keyboard has eclipsed my expectations by a million miles. I love the customization options, the various colors you can set the keys to, and the patterns you can employ in the way the keys are lit. My favorite, however, is the mode where you set it to use the key you have pressed to act as ground zero (if you will) for the light to radiate out from. I took a video of this mode, because words do not do it justice. My wife finds it very distracting to type this way, but I just think it looks amazing! I find an unintended benefit from it, as well, in that it helps me not look at my hands when I am really in the typing groove (which is what you are supposed to be doing anyway). I understand those that would find this too distracting while typing, so thankfully, there are plenty of other modes to choose from (I would love to demonstrate them, but I can't put up more than 1 video at a time here, and I just NEED for you to see this mode... need).
For background, I am a casual (occasional) gamer, nothing hardcore in terms of weekend gaming marathons or anything (I did that in a past life, but now I have kids). I have found the keyboard to be quite accurate for my needs, and the occasional FPS game (fallout, Icarus, etc.). At times, I have found it necessary to use one of the constantly lit modes if I am not actively typing a lot, (to find the keys in the dark) so I have preset a solid color, with no motion, as well as, a mode that resembles a swirling color pattern (or something swimming in circles, depending on your imagination). So, with the press of a button (p1 - p3) you can instantly select your preset mode.
To be honest, there are too many customizations for me list here, and it really does warrant a bit of time and effort to read up on the buttons, what they do, and how to set it up. It will work perfectly well out of the box, it's not like you have to program it, but if you want to customize the fancy features, you should do a little research in the manual. The macro keys would be particularly useful, if one has the time to set those up.
I appreciate the 5 extra keys and the special tool (a kind of tweezers) that were included with the keyboard, presumably in case of a failure, but mine has worked flawlessly so far. I am not a key smasher, but one does get carried away in the moment from time to time, that said, no keys have let me down to date. I also like the cord wrap, it feels very high quality and does a great job of keeping your extra cord from getting tangled in everything.
I am very pleased with this keyboard, and I enjoy the light shows it produces as well as the satisfying clicks emanating from the mechanical keys. I much prefer it to my laptop keyboard (which is lighted, but just seems boring when comparing the monochromatic light and the lack of movement/sound it produces). As a user, you really need to think about what is important to you. If you want a quiet, low profile keyboard, maybe this isn't for you. However, if you like to customize everything you own, like the sound of a classic mechanical keyboard when you're in the groove and it sounds like a machine gun rattling under your fingertips, have the need for more keys/macros than you can shake a stick at, prefer controls on the keyboard (volume roller, play, pause, forward, backward, mute, etc.), then this might just be your huckleberry.