I've still not ordered this and still deciding.
The Qpad-50 when ordered direct makes it quite expensive and close to the price of the Qpad-80. The Qpad 80 has blue keys but I don't need the audio or back lighting - fewer cables the better.
I need a solid keyboard for typing and don't need anything else (USB, audio connectors, lighting).
I'm leaning towards the Filco (brown keys) as it seems to tick all the boxes (expensive though) but I may have to bite the bullet.