This is a beautiful apartment which should be getting 5 stars, but one star is knocked off for noise (slight hum from a generator in castle, and a very noisy fridge), and one star off for the main contact point who says no to virtually every request, and who may fantasise about you being her peasant.
We spent one month in this flat and previously one month in the studio. If you are noise averse or just want to stay in a castle, we recommend staying in their studio flat instead of this one, the studio is good fun, no real noise, and beautiful.
Note: there is a motorway not far away but you can't hear it inside the castle. Also the castle has one of the most beautiful views ever from the courtyard.