Best keyboard ever!
I've owned quite a few mechanical keyboards in my life (Corsair K95, STRAFE RGB, ROCCAT Titan... ) but I haven't had many like this one (it's the only one, in fact).
The typing experience is really amazing and the sound of the keys is really pleasant. Far from the big mechanical clicks of a Roccat or Razer keyboard, here you're typing on a soft velvet tablecloth. I fell so in love with this keyboard that I swapped my Roccat Titan for the K8 pro.
I use it on both my Mac and my Windows, wired and Bluetooth, and it's really comfortable.
What initially attracted me to this keyboard (apart from the mechanical aspect) was the unusual Mac layout on non-Apple keyboards. The keyboard comes with a set of keycaps to switch it to Windows and it has a selector that lets you switch from one keyboard profile to another (Mac, Windows and Android). The keyboard is quite heavy and the build quality and finish are really amazing. I'm reluctant to sell my Roccat Titan and buy a K10 PRO for my Windows PC. The icing on the cake is that the Macro management and key mapping software is fully open source.
I've also tested its effectiveness in games and it responds very well (the silence of the keystrokes is really pleasant in games for me).