I find UHK unique among ergonomic keyboards as it combines the few vital things that I find that I need of a keyboard:
1. Compact layout (so I can take it with me between my two offices and home).
2. Split (ergonomic) keyboard.
3. A touchpad (via a mini extension module).
An integrated touchpad is vital to me as I get serious pain for the slightest use of mouse.
I have so far had to resort to the Logitech K400. It has point 1 and 3 above, compact design and a touchpad but of course lacks the ergonomic split design. UHK finally adds the third vital component.
Just gotta save up some $$$ :P
