Daniela's house is very pretty, split into 2 floors, with a spectacular view from the balcony on the same floor as the kitchen and upstairs bathroom, and a smaller version of the same view through the window of the master bedroom on the lower floor, which has the feel of being dug into the rock face itself. There was ample space for a family of 4 once we'd got the kitchen sofa bed set up, and the balcony was a wonderful place to wind down in the late afternoon/evening (it's a bit of a sun trap in the morning!).
The location is central, but, in keeping with the overall layout of Modica, removed from the hustle and bustle by altitude more than horizontal distance. It probably took us on average 15 minutes each way by foot to the central corso, but there are numerous different routes to explore with beautiful historical sights along the way, and it was a good way to work up an appetite for Sicilian breakfasts of granita, brioche and cannoli, not to mention all different forms of the wonderful Modican chocolate, and local pasta and meat delicacies!
Note: the side street the house is on can be driven along in theory, but it was too narrow for us to attempt comfortably in our rental modern Ford Focus. Instead, we found parking every time we needed it on the main road that passes by the castello just before the turning to the house, so no problems!
Modica also proved to be a great place to explore other local sights, such as the beautiful Ragusa and Chiaramonte Gulfi (another historical hilltop town, known as the "balcony of Sicily").
A very enjoyable stay!