Our group of 2 couples loved staying at Tiziana's apartment. Very spacious, although the 2 single beds are in the lounge/dining room, which could be a problem for some guests. Otherwise the accommodation is spacious and comfortable, lots of hot water and power outlets for our technology gadgets. It is convenient for public transport, being about a 5 minute walk to catch a number of frequent buses to get to several parts of Berlin. We used 104 and 194 buses (I think) a lot to get to Ostkreuz S-Bahn station almost daily.
The local Kaufspät is great for buying cold beer and other booze on the way home, but dont rely on it for anything else. There is a good Lidl store one bus stop away, which we used a few times to pick up food on the way home from a busy day being tourists.
And there is a vintage mens hairdresser almost immediately opposite, who was very chatting while giving me an excellent haircut. Just 50 metres away is a modest shop selling home made middle eastern desserts of rice, yoghurt and some exotic herb and pistachio toppings.
Finally when walking between the apartment and the bus stop you cross Heidelberg Strasse, which is where Berlin was divided by the Berlin Wall, with the bus stop being in the Russian sector or East Berlin.