If you go to Astore, you may like to go to Rama which is a beautiful meadow. PTDC is the place to stay there, and if you are feeling adventurous you may trek to Rama lake which is around 1.5 to 2 hours trekking from PTDC. Rememebr to take walking sticks with you as you will have to cross two glaciers on the way and it is too slippery without a stick.
Rama is on a hill top with some steep ascends, road is in rough condition at some places.