I sailed in November on the Zenith and used the Express Check-In, however I received a normal document package including luggage tags in snail mail. At check in all that required was the Xpress Pass and the credit card I was using. Embarkation took about 5 mins including security.
Explorer of the Seas October 2013
Caribbean Princess July 2006, May 2010 & November 2012
Monarch of the Seas November 2008
Crown Princess November 2007
Celebrity Zenith November 2005
Enchantment of the Seas August 2004