The palace itself is structurally impressive inside and out; and many of the rooms are decorated handsomely with large tapestries, murals, painted ceilings and interesting furnishings. Visitor information is relatively sparse, though an audio or infrequent English guided tour may reveal more; however I didn't opt for these as they are extra and it's already a little on the pricey side (though a combined ticket can save money if you've the time and desire to see everything on the estate).
The grounds, which are free to enter, were very pleasant and nice to walk in though a bit bland with just grass and trees. I don't know if there are flowers in the summer. The Chinese Pavilion is only open during the summer but looks nice from the outside. Despite looking far, it's an easy 45-50 minute journey from the city centre.