We didn't meet Joanna, but she was extremely helpful throughout our trip. We arrived early and her mum was around after only a short wait to let us in. During the trip Joanna responded to our messages immediately and let us stay on a bit later after official check out to allow for our flight time.
The house itself was perfectly situated away from the tourist centre of Stalida, right next to the sea and has a nice restaurant next door with very friendly staff. The house had everything we needed to cook dinners and was a short walk from shops, the beach, restaurants and the bus stop.
The roof terrace is a extra special bonus so you can catch some sun in private. Would recommend!