I've owned two X6's
In short: Do not buy
Main reason I got it was because I could remove the numpad
(the further apart my hands are, the more my shoulders hurt. Removing numpad helps a lot)
I liked it apart from 2 fairly serious things...
1: Certain combinations of buttons don't work. I can't recall right now, but it's an issue if you use WASD. I think it was if you held down three keys, two of which involved WASD, it would recognise a 4th keypress
e.g While crouching and moving forward/back left/right (ctrl-a-s) you couldn't reload
Strangely enough, I use ESDF instead, and never once encountered this problem. I had to switch to WASD to see what people were talking about
2: Keys kept dying.
It wasn't long before certain keys stopped responding, or I had to mash them really hard. Seemed to be mainly the number keys. Fairly certain I didn't spill anything on keys etc
Got my first X6 replaced... Same problem happened on second
Side note... If anyone can show me a backlit keyboard that isn't too wide (ie without numpad) I would be greatly appreciative.
Numpad on the left works too. Since the distance between mouse and WASD is still reduced