I have one of
these things and I'm looking to trade for a similar 87 key keyboard (such as a Filco or Leopold) but with Cherry MX brown switches instead. It's a great keyboard but I found that I prefer the brown switches. I'd also trade for any other kind of keyboard (regardless of size) that has a similar key switch feel and noise to the MX browns.
I don't have any feedback here yet but you can see my old
Head-Fi thread (also links to my eBay page).