I did those a number of years ago.. I still have the extra expensive notebook/binder and the pages I had printed. It's a very stressful day, and the shops don't keep the tools organized the way they want them to be. I never got reimbursed for the special paper and binder, or for any other expenses I incurred simply to be allowed into the garage and tool areas. The good news is that the pay will go up, significantly, because it's a very short timeline.
I don't know if the schedulers are the same, but when I did it they didn't communicate well. They sent an email and told me to be somewhere by 08:00 at 10:00, I get that it's probably a time difference because they are in a different part of the country, but it didn't change the results, I didn't go because I couldn't be over an hour away from my home 2 full hours before I even got the email.