I stayed for three nights at Isi's place. Everything was very easy, the communication, the check-in and check-out, finding the flat...The flat is very close to the central station and also to the green metro line that is connected to the red line, all very easy. I can only recommend to stay at Isi's place, the flat was very clean and it has all you need. The roommates Valeria and Chantalle were very cool too. Isi was also very helpful when it came to answering my questions about just anything (where to eat, go out....) There is really nothing to complain about! ;-)