I got my Geekhack keys today and installed them tonight on my work (tenkeyless) and sc2 keyboards.
I started with placing the orange geekhack key, orange space and orange esc key on the keyboard. I also placed four sc2 race keys as F5-F8 for fun and to match my sc2 keyboard. The other cool thing I ordered was command keys (since I use Macs for work). My mod keys are all accuratly labeled (from left to right: Control, Meta, Command, Space, Command, Meta, Super, Control) with Caps Lock being labeled a control as well. I LOVE IT. I’m very please. I might put some blue or orange keys on the keyboard as well but I haven’t quite decided.
For now I’m just loving the fact that my keyboard has my Caps Lock 
Control key and all mod keys correctly labeled. I’m really using a meta key no!w