My wife and I recently returned from a Round the World trip on the Rickmers line so we cannot comment on the Bank line. However, if anyone out there is considering such a trip you "may" be interested in reading the journal we kept. It is located at
http://carleli.livejournal.com Please note that there is no "WWW" and the "http://" must be typed in. I might also point out that this was a cargo ship which tend to have longer times in port than a container ship. As many have mentioned before, this type of travel is not for everyone but for the right kind of personality it is truly awsome. To also experience the flavor of such a trip you may want to take at look at some of our pictures.
http://www.flickr.com/photos/carlelitz/sets/72157605594966220/Enjoy!