Budakeszi : 3 rooms ( 2 bedrooms , living room) bathroom , kitchen , Green area , Public transport.
Danube is 15 minutes with bus.
If you want a very comfortable large apartment where are 3 bedrooms , I give for 60 euro/night together , it is 20 minutes with bus from Moskau sqr and Metro and Castle of Kings. Address: Budakeszi str. 75 square meters . You can see some pictures of this on 3 rooms, bathroom, kitchen ,satellite TV, garage facility, computer.