This looks like a non-hotswappable board with proprietary switches, and it's still tied to Logitech's wireless dongles (which are notoriously bad about both causing and being super-sensitive to 2.4Ghz-spectrum interference). I mean, I _think_ the switches are proprietary -- the page has no real information about the switches at all, which is a bit like selling a computer by showing you a picture of the case and telli…
I would see myself buying one of those if it was a bit cheaper (they will drop in price for sure) and if I didn't have enough keyboards.