Great apartment! A lot of stairs, but not a problem if you don't mind the little exercise! But very nice open space in the living areas with lots of light, and a great view of Berlin from the balcony.
Great facilities, didn't have a TV but for my stay this wasn't an issue. Around a 5 minute walk from 2 tram stops so great connections to the centre and other areas in Berlin. There's also a good sized supermarket all of a minutes walk away from the apartment which we found was great for picking up anything we needed.
Will definitely consider staying again on my next visit to Berlin!