Got mine today. Nice keyboard. I bought the uber-deluxe, PBT, $140 version with the wrist rest and extra keys. No crooked spacebar and everything works like it should. I'm not sure if they are manufactured by Filco or not, but if not, they did a great job knocking them off. Without measuring, it feels about as heavy as the Filcos I used to have. The only disappointing part about it is that the keycaps are pad-printed, and not in the Filco sense, either. These are more like the old IBM white-on-black pad-printed style, so we'll have to see how long they stand the test of time. Otherwise, I am very impressed. The keycaps have a nice feel to them, but they are about as thick as the Filco caps, and you can definitely tell they are of a different plastic than the Filcos. I kinda like the Filco stabilizers better, but the Cherry-style stabilizers in the Ducky are pretty nice. Depending on what the Leopolds are like in a full-layout, I might get a Tiger/Keyboard of the Year/whatever edition for work and move the OCN version to the crib. Overall, I have to give this a thumbs-up.
The wrist rest is pretty nice, too, but it makes my palms sweaty. It could be a little taller, too.