The location is right next to the center, it's in walking distance to both beaches of Terrasini and to the city center with all the bars and stuff. There is also free parking on the streets (on the blue spots) provided by the hosts (with a special permit you need to put on the dashboard).
The room was nice, but the floor was dirty (it might not be an issue for people used to walking with shoes on inside the apartment).
The window situation is kind of weird. Because the apartment is on the ground floor the blinds need to be shut in the evening and there is no light coming in in the morning. I guess we could have let the blinds open but we didn't feel quite comfortable doing that, giving the fact that the window was located right next to the sidewalk.
All in all for us it was a good accommodation, the location, the communication with the host, the structure of the apartment were all great.