Coming from a 4790k/Z97 system, this is the first time I've dealt with Skylake, and that is one of the motivations why I went with a Skylake built.
Honestly, I'm indifferent to the Skylake, the improvements are minimal. However, the Gaming 7 motherboard by Gigabyte is gorgeous. Also, the mobo's support for 2280 standard M.2 SSDs is one of the main reasons I chose Skylake. Huge downside is that you have to jump through a chain of hoops in order to install Windows 7.
The main focus of this build is the case, which is the most beautiful case I've seen. I have already had experience with the Phanteks Evolv, but the duo sided tempered glass raises the bar even further. It's now equiped with an RGB lighting system that is controlled by a small button on the front IO - which lights up the power button, and a light slit in the front panel. You can also add RGB LED strips to the case.
The biggest downside to the case is that the tempered glass panels are a pain to remove, and obviously the fingerprints that you leave are hard to clean up. The quality of the glass is top notch and downright gorgeous, and if you spend some time cleaning up the cables, the backside can even look stunning! I personally got lazy and didn't do too much management, but I added a NZXT Hue+ to add some lighting to the rear and to help cover up the mess of cable.
I got this case from a friend who does tech reviews. So I quickly threw together some parts lying around for a photo op, and of course, to test the Skylake and Z170 system themselves.
After 2 weeks of using Skylake, I've decided to permanently migrate. The internals of this build will undergo change as I switch out parts gradually.