The app allows you to view plans after making the reservations. I've confirmed that my reservations are complete.
The last page is just a confirmation which is not attached.
No, I am able to keep going back to create a party. There is a separate link for the reservation system. I tried posting it here but it wouldn't let me.
I'm in! I was able to make my 4 day park reservation in August 28-31. Process is simple. Don't refresh the page when it hits 0:00........let it sit there until the system lets you in. This is the 2nd attempt and worked for me.