As with most places in Europe, be prepared for the stairs. This is a 5-floor walk up. It's alright, though...because the apartment at the top is worth it. There's an old-school pinball machine in the corner and one of the most comfortable couches I have ever sat on! Everything is very clean and tidy, the bathroom is very airy. My three friends and I were only here for a few days so we didn't use the kitchen. It would have been cool if there was a washing machine in the apartment, but if you really, really need to wash something: Peter's friend who came to greet us and give us the keys lives in the same block and you can ask her if you can do a load there. She also showed us a map of the city and pointed out some places in the neighbourhood that we could visit. The wifi connection is very weak in the apartment, so don't expect to do too much browsing. All in all, the whole stay was a pleasure and the only thing we regret is that we didn't have more time to see Berlin!