We (Dutch couple) stayed here for a week. Acco is perfect for two, and we fell in love with the wonderful area and the town Casteglioni build on top of a hill (you'll have one of these astonishing views from your balcony). It is still an authentic and relaxed village, not at all touristic. So nice to hike in this area, or drive by car a bit further and visit the towns in the area, or the beach and Pescara. Although we were there before the real touristic season, the temperature was good and we went to walk along the shore and enjoy the restaurants and good Italian food and drinks in Pescara several times that week.
We've met very friendly and hospital people and made new friends over there.
We will certainly come back for another stay!