@Neff
It's very nice. The main problem; I need to train myself to remember there are macro keys on the far left because I keep putting my hands in the wrong place.
But it is my far the most soothing keyboard I've ever used, and the combination of tactility and sound makes me want to write things. It is also full of silly LED tricks which really accomplish nothing but add some charm.
And it doesn't slide around on my desk, unlike my work keyboard.