I've actually had pressed duck. It was at Antoine's in New Orleans. We were there on some kind of anniversary celebration, and they did pressed duck, just for that evening.
I wasn't where I could see the actual operation, so maybe that had something to do with it. If I'd seen the whole thing, I might feel like Grivusangel does. As it is, it really was delicious and the sauce was wonderful. I think I had in mind that pressed duck was like a spatchcocked chicken - you know, pressed flat and grilled. I honestly didn't know it was squashed in a turnscrew device. That does give it a rather icky air, I have to say.