To start: the place is really nice, cozy, clean, new, with all necessary equipments.
It is really well located: the major places to visit are at walking distances, along with supermarkets, cafes, restaurants, bars and shops.
And the cherry on the cake: we felt really welcome with a big smile and small gifts, maps of the city and the metro, and even a list of restaurants and cafes around the apartment!
All in all, we had a very pleasant stay in Prague and this place deserves some merit for it!