The metro station is about 20 minutes walking distance to the palace. We finally got there around two o'clock in the afternoon. The queue for ticket was pretty quick. It costs 15€ per adult and kids are free to get in.
The palace is grand and magnifique. I can imagine all the royalties having a banquet party at the palace. Each corner in the palace has each awesome detail.
The garden is breathtaking and simply amazing.