Bottom line: The Deck keyboards offer very pleasant key feel. Its different than the feel of the IBM's, but infinitely better than 99% of the keyboards you can find in stores. The Deck's keyswitches are rated for longer life than the IBM's. Finally, the Deck is a lit keyboard. There is NO lit keyboard that even comes close to the Deck boards as far as quality.
QFT. Deck has the best key feel out there. I was a klicky keyboard man , owning a Model M IBM keyboard. But Figured I would try the Deck since I had heard good things about their keys. While the keys do not buckle like on the Model M, they do have nice audible feedback at the bottom of their stroke. Keys are not mushy feeling at all, like on typical membrane keyboards.
The deck is now my favorite keyboard, and my trusty klicky is kept in the closet as a backup if ever my Deck should fale...