Check-in was no problem even though we arrived 1h ahead of time.
Flat is in a perfect location in the centre of Ortigia.
The flat has all you need.
The only drawback is that it's relatively dark and might get a bit chilly in spring (it's certainly perfect if you stay there in summer!), but on the other hand it is in a historic location and gives you the original Ortigia experience!☺