Heidi was exceptionally friendly. She was flexible about the check-in time and quick to communicate. Bed was comfortable and ample space to hang clothes and store things away which I appreciated. I was in Berlin during the heatwave and slept with the window open so noticed the buses on the street late at night (which Heidi mentions in her description). But when the windows where closed, there was no noise. Great location close to cafes/shops etc.