Absolutely amazing. Gold EVERYWHERE. Best advice, go tour the gardens about closing time, find a private spot and have a quickie shag. I shagged in the garden at Versailles. Those are some bad ass bragging rights.
Do not touch anything. Do not attempt to stray from the tour. Do not take anything (including dead wood from the garden). I learned the hard way when I tried to exit with a neat-o dead twig that had been pruned from a yew tree. They got really pissy and I ended up sulking out feeling like the ugly American. Then again, the French are ALWAYS pissy. Good wine though.