They have a link that gives you an example of what they expect in the report. The narrative that they look at with the most criticism is the kitchen section. Each item that is served is required to be explained in its own paragraph. Be sure to also include who ordered the particular item, you or your guest.
They are also big on quotes made by the server, bartender, hostess....etc.
Some of the reports can have as many as 200 questions with very detail required narratives in each section. Eventually you will get the hang of it...be prepared to spend 1-2 hours on the reports.
The biggest issue I find is that you can apply for an assignment and it can sit in your application basket for as long as 2 weeks. Then it either disappears or you do get assigned to it. The problem with this is that you could be missing out on other opportunities with other sights waiting so long to get assigned. The one thing that is good about this system is that anytime prior to being assigned you can cancel your application.