The flat is perfectly located: close to the bus stop for the coach from the airport, close to the heart of the old city and the large shopping street, close to the port (if you are going to the Islands or catching a bus to Marsala or San Vito) and to the Lungomare (seaside promenade). Plenty of lovely cafes and restaurants around. Make sure to visit the charming (and award-winning!) pasticceria "La Rinascente" which is on the corner literally 10 steps from the door.
The hosts are perfectly courteous and respond quickly, the flat is well outfitted. Angelo has provided a thorough guide to the city and what to do there. The flat's windows face the inner yard to you never have a direct sun, which, as you can imagine, is quite a bonus in summer-time Sicily. There are two air-conditioners which keep the flat cool and dry if need arises. The kitchen has a gas cooker, an oven, and there's a washer for your clothes. This was absolutely perfect for our 2 week stay in Trapani!