Horrible Horrible experience. Purchased two tickets for 11am entry at Gate A. Passport tickets guarantee entry within 1/2 hour of time on the ticket as per their website. Upon arrival to the courtyard we noticed an incredibly long line at Gate A. Thinking these were people who did not buy tickets, we walked up to the ticket person at the entrance and showed him our tickets. He pointed to the line and said "that is the line for 11am."
The line was no less than a 3 hour wait to get in. We ended up leaving. Total waste of a day and we never got in.
Their guarantee does not mean anything and dont be fooled by it.
Opt for a guided bus tour instead. They get right in upon arrival.
SO DISAPPOINTED IN VERSAILLES