Have spent just one night in this castle hotel. Really liked the quiet surroundings and park. The room was spacious, matrace not too soft rather hard (which I prefer). The castle iself looks brilliant. The car park is some 100m walk, but you can drive the car to the gate and unload your luggage and park later. Hotel restaurant is just average. If your ears are really good, carefull. the castle has some old clock that chime every 1/4 hour. Even though this is not so loud, some people might find it disturbing and there is nowhere to run away from the bell :-)
WIFI only in some rooms, but they provide LAN cable for laptop users free of charge.
NO AC in standard rooms (don't know about Luxury ones) but as the building is rather old the thick walls provide good shelter from summer heat (over 30°C at the time of our stay).