I recently stayed at an Airbnb and I have to say, it was an absolutely fantastic experience. The location was great, very close to the city centre and had everything we needed for a long-term stay. It had everything you might need, even things you haven't considered. The place was so cosy and had a huge TV, various welcome gifts, and even access to water, tea, etc. The furniture was amazing and the cleanliness was top-notch. Communication with the host was seamless and easy. I truly felt like I was at home. This was by far the best Airbnb I have ever stayed at and I highly recommend it to anyone. Five stars all around! Don't hesitate to book, it will be very hard to find something better in Berlin.