It's been a ride! We were given 1 week's notice for our Vendor preview. So turning around flights, hotel, car, etc. in a week was a rush. I went Thursday. Knew about the "no photos" and was perfectly fine with that. However, Park Ops was ROUGH on Thursday. Zero rides and 1 show. (I have already ridden everything during mock service so I was fine with that). The one downside was Stardust never opened. By the preview, it seemed like things were firing on all cylinders from other co-workers that went later.
The sun is brutal in the park. Definitely wear sunscreen and take breaks.