We came around 4pm, and by that time the lines wer...

We came around 4pm, and by that time the lines weren't that long as lots of people were already leaving.
The audio guide was really good, you simply tell the employees what language, and it starts talking to you. You can listen by holding it against your ear like a phone or plug in your own ear phones, what is the best method.
The rooms in the main palace are a great piece of art, and sadly that is the focus. The guide barely mentions the king and his personal affairs or life in the palace, and mainly talks about the art painted on the ceilings and the walls. Some rooms don't have any furniture in it. I'm not an art freak so after the third room, I wanted to hear something else, as all the rooms are devoted to Greek or Roman Gods and the information is repeated.
My highlight were the queens chambers, because those rooms were furnished and the guide offered interesting stories about the sisters' personalities.
In my imagination the palace was much bigger, and the tour wasn't that thrilling.