I have done non-workout PF shops for at least 3 different MSCs. Depending on the company, you may or may not have to do a pre-visit call, which is usually a very simple scenario. In person, you sign in, take a tour, and then sit down with the employee to talk about rates. They have usually taken me 20-30 minutes for the shop itself.
The report definitely varies by MSC, but all of the ones I have done have had multiple narrative sections. I would say they were average to a little longer than average reports IMO. The non-Sassie-platform MSC that has them definitely has the questionnaire available to view before you request the event, so it may help you to look it over if that is the company you're looking at.
I believe the workout scenario shops are similar, but you just do a 30-minute workout and see if the employee checks on you in addition to the tour and rate discussion.
Happily shopping the Pacific Northwest. Shopping since 2013