Nicoletta's place is a beautiful spot on the island, located just below the village of Oia. We personally loved being in a more quiet, out-of-the-way location, away from the tour groups and resorts up in Oia. We weren't quite as prepared for the climb up, but it was definitely worth the stay in Ammoudi for the location and privacy.
The apartment itself is clean, and has an amazing view of the bay from the rooftop patio (which is private to you!). Nicoletta was also extremely helpful, leaving a ton of brochures that helped us find some lesser-known gems on the island (like the open-air theatre in Kamari). She helped us organize taxis, tours, and excursions, and was readily available to talk.
We really enjoyed spending part of our honeymoon at Nicoletta's apartment in Ammoudi Bay, and would recommend it to anyone looking for a unique spot on Santorini.