Concetta is a wonderful host, she came to our rescue on a couple of occasions during our stay.
The apartment is simple but very nice (very much as listed). Importantly, it was very easy to keep cool. The upstairs main bedroom won't be suitable for people with mobility issues, but fine otherwise.
The view from the flat is superb. And you really are a few steps away from one of the local bathing points.
Ortigia is a lovely island - there's lots to do and see, and obviously some great places to eat.
We wished we'd scheduled more than three nights on the island!