I can highly recommend Antonio and Alan's place for a stay in Berlin. They have been only helpful and welcoming, and made sure that everything was clear and in place. When they couldn't be there themselves, they organized with another person to take care of everything and that worked out really well. The apartment is wonderful, the location is calm but still close to buses and the U-Bahn, and it is good value for the money. They also have an absolutely lovely cat 🐱