We didn't had the chance to meet Jan at the apartment, because he was on a business trip. But the contact with Jan was quite uncomplicated and pleasant. His girlfriend managed the check in and was available if we needed something. This was also friendly and made us feel welcome.
The only critique is that the apartment is a bit damp, but Jan and Jolanda are working on this. But this is complaining on a high level :-)
It's located in a calm neighbourhood and you can walk within 10 minutes to two beaches and in about 15–20 minutes to the center of Ericeira.