The hotel is situated on Pyrgos, the highest location on the island, at the entrance of the medieval castle of Kastelli, enjoying an unobstructed view of the entire island and the Caldera at the distance. Beautifully designed and decorated, the Zannos offers a very high standard of accommodation. There are rooms of different sizes and layout. Astra Apartments consists of 19 units, all of them built in 1992. Recently, the complex acquired 2 suites, one with one bedroom and the other with two bedrooms, that are decorated in a very modern and rather minimalist style, and also have a fireplace.
All rooms have double beds, and only the extra beds are sofa beds.
In the suites there are king size beds. The furnishing is very stylish and various artifacts and antiques decorate the spacious rooms. Cleaning service and change of towels are made daily. Sheets are changed every second day. Small and well trained pets are allowed.