My wife and I stayed here for our honeymoon. The fisherman cave was very tastefully decorated and extremely clean (was cleaned everyday by a very friendly housekeeper). We had breakfast brought to us everyday on the balcony which was delicious including Greek yoghurt, fresh fruit, preserves, variety of breads/pastries and juice.
It was in an excellent location to experience old town of Oia with good access to the Ammoudi Bay (lots of steps but this is typical of Santorini!).
Plenty of restaurants and bars nearby, recommended by Panos.
On the first night we chose to watch the sunset from the balcony, such a beautiful and uninterrupted view, compared to the busy crowded streets and bars.
Also worth a mention is the taxi drop off and pick up organised by Panos. Not only was this punctual but the porter helped carry our bags up and down the steps which was much appreciated!
Would happily stay again and recommend to others.