Bao & his roommates are very cool. But the bathroom is super disgusting. The neighborhood is awesome: lots of food, well located near the airport, diverse and inexpensive. I ate out every meal because the kitchen was horrific, but the food I found was great. The apt. is pretty quiet, the bed is two mattresses on the floor. I appreciate that Bao is doing the hustle by renting while he's away to make extra cash–I did the same–but seriously, the bathroom and kitchen should probably be demolished, as I think cleaning them to a safe level may be beyond human capacity. Overall, I had a great time in Berlin because I have lots of friends and decent weather to get out and walk, and hey: the room was 12€/night and no cleaning fee. Would I stay there again? Probably not. Would I have a drink with Bao? Sure, seems like a cool guy.