Sandra's place is just at the entrance of Isola d'Ortigia, so it is really central and next to everything. It has everything you may need for your stay. Please note that on Summer 2021 the restricted traffic zone changed, so from 17hs. onwards you cannot access to Parcheggio Talete (the closest parking, ~200mts. away). But if you leave your car before that hour, there shouldn't be any problem (but please: check this whenever you travel!).
We only had two problems with the apartment:
* The WiFi connection wasn't strong, and neither was our mobile network. Evidently the construction isolates somehow these types of signals :), and the router didn't seem to be located inside.
* The apartment is near an open market, so in the early morning you could hear the noise of loading/unloading quite close.