Sounds and works great on my silver X-Bows Knight Plus :)
It is easy to carry and is perfectly symmetrical except for the right side of the keyboard.
(It is very wonderful that the tabs, etc. are 1u size)
Ever since I started using the X-Bow Nature Keyboard, all of the pain in my wrists have disappeared
Buying my second keyboard from xbows.
I bought the Xbows Nature keyboard years ago and I bought another xbows keyboard now (1 for work & 1 for home) because I like it soo much.
if I can suggest some improvements:
the keyboard software can be improved, eg have more keyboard layouts like Colemak-DHm.
the letters on the keys can be bigger.