I saw a thread on this a couple weeks ago but I can't find it now.
There's a great video in the article showing the ship turning around in the Willamette River.
http://www.katu.com/news/local/48610387.html (http://www.katu.com/news/local/48610387.html)
Anthony Bourdain wrote an article about a stay on that ship that sounded alternatively like it'd be a blast, or it'd suck to be cooped up with so many pretentious snobs. It's collected in his book, "The Nasty Bits".
Cool boat nonetheless, though I'm a bigger fan of The Maltese Falcon
Seeing as how you can "rent" a place for a while, it might be fun to get in on a leg of that trip. Maybe traveling down the coast of Italy... ;D