The farmhouse is in a very good location for Besalu, L'Escala and the surrounding countryside. Banyoles is not that special by the way in winter and the buildings are not as impressive as both L'Escala or Besalu. The countryside in Pol and Rita's is unrivalled we think. There is a 2019 Michelin restaurant 5 minute drive away. There are some amazing walks, such as one which takes you to the hills high above Besalu.
Please note that while Paul and Rita's place is very nice, it is a long farm track which will not be easy for small cars or low sports cars. Rural spain is a place where dogs may not see much traffic (Paul and Rita's are lovely), so expect excitable dogs in the lead up to their house!