The building has 24 hours security with a reception, free swimming pool, jacuzzi, sauna, steambath & gym.
Free 240 Mbit/s wifi.
Big private terrace.
The subway (to the city center & airport) and FINA Dagály Swimming Complex Duna Aréna are 5 minutes walk, the Margitsziget (Margaret Island) is 15 minutes walk. U can reach with public transport easily the Heroes' Square, Szechenyi Bath, Zoo, Parliament & more.
I'm living next door, so can help anytime & late check-in possible.