Great place to stay in Berlin, very nice clean flat in a good location. Room was quite big, beds are really comfortable and have those big square german pillows which are great, and a nice balcony too. There's a kitchen with a kettle/fridge/hobs/etc and a two shared bathrooms, everythings spotless as a cleaner comes round every day. And most importantly, the showers are top notch, powerful and really hot. (nothing worse than a weak shower)
Only issue is the wifi which is pretty slow and intermittent. But you're not going to Berlin to sit on the internet are you?!
Overall a great place to stay & great host, cheers Jorg