We really enjoyed our stay at the Residence Castello!
The apartment no. 4 is gorgeous, spacious and beautiful. It is fully equipped with everything you might need during your stay. The location is great too, right in the center with the castle just outside and only a few minutes away from the restaurants, shops and a nice beach.
We did not get a chance to meet Luigi himself, but his parents were very kind and helpful, and showed us everything.
Highly recommended!