Etna apartment is absolutely amazing. The pictures do not do it justice - the views from the enormous terrace are just incredible. And aside from the views, the location of the apartment is perfect. You simply walk down a flight of stairs and you're in the historic downtown area, right next to Porta Catania and Corso Umberto (the main st).
We didn't actually get to meet Paola, but her parents welcomed us, and were the best hosts anyone could ask for. I'm pretty sure her father is my favorite person I've met in all my travels. He was so nice and eager to help, and even though there were tourist maps available to you in the apartment, he took the time to draw us a map and point out all of the places we should go, while joining us for coffee on the terrace the morning after we arrived.
We will absolutely be staying here again when we make it back to Sicily.