Frank was endlessly accommodating and lovely, making my stay in Berlin complete awesomeness. He's constantly offering coffee or tea or even croissants to his guests, recommendations on day trips, guidance around navigating the public transport system, listening to everyone's trials and tribulations, successes and excitement of travel, insists his guests do not wash dishes, even cleans the bathroom (daily!). All for a really reasonable rate in the super-hipster heart of East Berlin. I can't recommend the 'Planet Art' Pension Berlin enough, you will not be disappointed!