I really recommend Tiziana and Riccardo and their lovely apartament!
It is clean, spacious and with breathtaking view on the see. It is located within walking distance to the city centre and to the port (about 25 mins).
Also, if you're travelling by bus, there is a bus stop on Via Fardella - it's about 10 mins by feet from the apartament.
Riccardo is nice, helpful and open-minded person.
Whenever I'll be travelling to Trapani, for sure will stay here!