We stayed at Casa S.Barbara in 2015 for several weeks and returned the next summer! The flat is located in a gorgeous baroque building in Monica Alta, a beautiful neighbourhood tucked away at the top of the town. With three large rooms and an extra bedroom on the ground floor the apartment is very spacious and the ceilings are higher than they appear in the photos. The antique furniture from nearby Catania is tastefully arranged and the host plays great attention to detail from freshly pressed cotton sheets to a supply of local olive oil. It feels like a five star hotel.
The town is very friendly and secluded from the tourist attractions in Modica, located amongst the small baroque streets, but everything is within walking distance. The area has a wonderful local feeling with an excellent pizzeria on the top of the hill spilling out under the cathedral (Chiesa di San Giovanni); a special secret where you will find the best pizza in RG (also very affordable!). There are several excellent deli's, pharmacies, etc within a few blocks from the flat. Whilst tucked away in the mountains, it is easy to drive or take a bus to the beautiful beaches in the Pozzallo area and it is a short train ride to Siracusa or Catania. Modica is also a good home base from which to explore the other towns in the Val di Noto during the day, Ragusa and Scicli are both about ten minutes away. Though you do not need to go anywhere as there is an endless amount to explore within the winding labyrinth of staircases that connect Modica. The town has an excellent contemporary art galley (Laveronica), dozens of breathtaking cathedrals, a proper bookstore, great restaurants, as well as many historical, architectural, and archaeological sites. The host is very attentive and will be glad to help you with anything you need. The wifi is very fast, the kitchen is fully equipped.
I fully recommend spending some time at Casa S.Barbara, it is a truley special place!