This is the second time we've stayed at Delia's place in Ortigia, the historic "old city" of Siracusa. There's a reason we went back! Delia is a gracious host, communicates clearly, responds quickly, and is always helpful. The place itself is cozy and comfortable, and perfectly located to see the sights of Ortigia on foot. The rest of Siracusa is accessible by cab.
No problems with self check-in or the check-out, your only minor inconvenience will be that, due to the narrow ways into the location, you won't be able to drop your luggage at the door. The experienced traveler in Italy will already be used to this!
We will always keep this place in mind when we come to Siracusa, which we hope will be more often.