Jofre's apartment is at the Castle end of the Gothic Quarter. This means that you will find many, many restaurants, small shops and other attractions within (literally!) minutes of walking. Castle is probably 10 min as well, beach - probably 3 min, the other end of Gothic Quarter, ~10 min (Tosa is small :) ).
It also means that if you follow Google Maps or some other GPS, you may end up on the Gothic streets, which are 1-car wide and full of people. Try to reach the round-about at the intersection of the Avinguda de la Palma with Avinguda de la Paloma, next to Platja de Tosa del Mar, SW of Hotel Minerva, then follow Av. de la Paloma into Passeig del Mar all the way into Carrer del Pont Vell. You may have to explain to some policeman that you need to unload, but you'll get through.
The apartment is otherwise on top of the restaurant Can Pini, you will enter into the service door and veer immediately up the stairs to second floor (#3 for US folks). No elevator, sorry. It is relatively noisy if you are a light sleeper, esp. right before dawn when the garbage trucks come nearby, and early morning when the restaurant owners prepare for the day.
There are three bedrooms, one with two twin beds in either side, one with two bunk beds (on top of each other), and the Master with a Queen bed. It is laid out on length, with bedrooms stretched along a hallway, ending in the kitchen+living+dining area, with the view of the Castle. Kitchen is fairly modern, and is also where the A/C is. There are two machines that are either (Laundry) Washer, Drier or Dishwasher - not sure as we haven't used them. The apartment has a lot of decorative objects, some of them quite nice (subject to tastes :) )
Jofre is himself very helpful, speaks good English (a luxury in Spain), and works in another restaurant within 20 meters. He is fairly responsive on WhatsApp or SMS. We met him several times, first one when he helped us unload and carry up the stairs.
Overall, a great experience: great location (once you're settled in), very responsive and nice host, decent apartment.