I loved to live in that flat, because its absolute central, everything is in the neighborhood, like theaters, bars, pubs, shops, public transport (Tram Nr. 4-6 (2 min), Metro line 1, and 3,(4 min) etc.) The flat is on the roof, and is absolute quiet, has air conditioner in both rooms. There is elevator in the building. Its 54 m2, has two separate rooms, so maybe two couples also can be hosted in it for a short vacation. Hope to see you there! :) Also, there is a big enough kitchen for 4 to fit and full of cooking staff.
You can walk to everywhere from this place as it is in the central, but train line 4-6 is going 24h a day, so you can get home even at night easily.
Danube 8 min, Parliament 7 min, House of terror 5 min, Margit island 10 min, next bar 1 min:)