The apartment was clean and Agostino was friendly and very punctual. We had everything we needed for a longer stay. It's an interesting location, with narrow streets and old buildings and, for me, that 'labyrinth' of old streets was part of Gaeta's charm.
My recommendation is to have a car with you (with full day parking permit - 10 euro) if you plan to go to the beach multiple times a day or if you have a lot of stuff to carry with you.
We had a great stay in Gaeta.