Where to start. To begin with the view from the house is probably one of the most beautiful ones there is. It might take you at a couple of hours to understand what you see. Very close (5 min walk) there is an observatory and a cape where you'll see the most amazing sunsets. We were there almost every evening.
The second thing is that Nando is the perfect host. He met us at the port, took us shopping for groceries the first day, and was always available for questions and offered help when we need. He even invited us to meet some of his friends!
The only challenge was the distance to the city and the steep roads. We walked to the town a couple of times, and used a bit of buses and taxi to get around, and even got a lift with Nando some times. However, it would probably be more convenient to rent a scooter or car because going down the hill to downtown is not such big deal (30min) but going up will cost your knees some pain. Nandos place is so beautiful though, so if you are like us, you probably won't mind staying close to the house, cooking some food, drinking some wine and watching the stars over Volcano.