Back one year later for the same convention, thought I'd give them a second chance. Still after one year of attempting to serve lunch to convention goers, the owner chose not learn from past experience, check the calendars for the surrounding convention spaces to see what crowds crowds to expect, and staff his restaurant accordingly. There is zero excuse for only one of the two cash registers being staffed when the line is going out the door. One star off my original rating for a relatively bland pastrami, one star off for not learning from lessons of the past.