I was after my first "top of the line PC". I've always been more of a mid-range builder. In January I upgraded my gtx970 to a 1070 and that sparked it.
The goal with this build was to make no real comprises for performance and keep it as color consistent as possible without being an RGB lightfest, there is one strip at the top, but I use it for white light mostly to illuminate the other parts.
The build is used mostly for gaming (if I'm being honest, mostly for LoL, but I've been playing the Witcher 3 lately). I originally assembled most of these pieces back in early March. But decided to put in my Step-Up request for a 1080ti, because once you've spent 2k on parts, might as well spend the $300 to cap it off, and that processed much more quickly then I thought it would. So here I am. It's running great, the CPU OC's pretty easily to 5.0ghz at ~1.3v but I'm running it at stock currently because stock is overkill.
Firestrike Extreme: http://www.3dmark.com/fs/12209607
This board here is a beaut, the best z270 Mini-ITX. It's got all the important options and none of the BS. A rock solid OC'er, super easy to build on. Seriously, most Mini-ITX boards have stupid layouts for things like USB headers, the ASRock has everything in spots that make sense. The on board Wifi is very solid. The BIOS is well organized and easy to use. Highly recommended.