Staying at Ursula's place was the perfect way to experience wonderful Berlin. The flat was huge with a comfy bed, the best mattress and a big bathroom which allowed us to truly relax after travelling for 2.5 weeks. The Kreuzberg/Friedrichshain area was awesome and we could easily walk to lots of great food and coffee places, plus it is close to a u-bahn stop which means you can go anywhere. We'd recommend to anyone staying in Berlin.