There's virtually identical, very nicely done desk from SteelCase, which goes for a bit over $1,000. If they can halve this without compromising on the quality, they will do well. Otherwise, it'll be just another "artisans who care sooo deeply about quality" KickStarter flop.
Edit: At about the 1:20 mark in the video, they've just talked about how reducing the number of parts reduced the cost. And then "Starting at $399" is written on the screen. They don't actually say it. Text only.