Asteras Villas was in the perfect location for staying in Santorini for us. It was a couple of minutes walk to restaurants, bars, the town square, the pharmacy, or whatever else you needed.
The manager there is great. He really wants to make your experience the best it can be.
The hotel is small, with just a few rooms, but the view is amazing out to the caldera and water. Just relax on the balcony with a drink, or walk up the steps and find a local establishment nearby. The PK Cocktail bar is literally next door and is a great place to watch the sunset from.