Communication was the best I ever had. Perfect! Street is wonderful! Location is very central and all the highlights close by. You get everywhere in walking distance. Very nice! Also keep in mind that it is rather close to a central street where the emergency ambulances drive with sirens on by night.
For us the „luxury“ in the apartments title seemed a bit misleading. The luxury of course is to live so centrally and in a huge and historic place, but do not expect nowadays luxury standards e.g. concerning the bath infrastructure, doors or furnitures in the kitchen.
Still it is a charming antique place to be located in a very famous historic street even with embassies nearby.