Very simply: If you are looking for the perfect location with the most iconic view in all of Santorini, this place is it, hands down. Worth every penny. Santorini was my wife's dream destination and this place was the perfect adornment for a dream come wonderfully true.
The only reason you would not stay here is if you are looking for something more like an opulent resort type of ambiance. Island Blue is not that, however it is very comfortable and blows away any resort in it's charm and uniqueness. I would 100% make the same decision to stay here over any other place on the island regardless of price. Our stay was that perfect.